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Every contact leaves a trace | John Sutherland | TEDxLondon


I’m a fortunate man I’m a husband to an

I’m a fortunate man I’m a husband to an extraordinary wife I’m a dad to three

extraordinary wife I’m a dad to three

extraordinary wife I’m a dad to three beautiful girls and for the last 25

beautiful girls and for the last 25

beautiful girls and for the last 25 years it’s been my extraordinary

years it’s been my extraordinary

years it’s been my extraordinary privilege to serve as an officer in the

privilege to serve as an officer in the

privilege to serve as an officer in the Metropolitan Police here in London this

Metropolitan Police here in London this

Metropolitan Police here in London this city that is my home I joined the Met in

city that is my home I joined the Met in

city that is my home I joined the Met in September 1992 this is me a training

September 1992 this is me a training

September 1992 this is me a training school back then and in the time since

school back then and in the time since

school back then and in the time since then

then

then policing arguably has changed in all

policing arguably has changed in all

policing arguably has changed in all sorts of ways certainly since the Met

sorts of ways certainly since the Met

sorts of ways certainly since the Met was founded in 1829 but then of course

was founded in 1829 but then of course

was founded in 1829 but then of course the world has changed and society has

the world has changed and society has

the world has changed and society has changed and the communities that we live

changed and the communities that we live

changed and the communities that we live and work in have changed technology has

and work in have changed technology has

and work in have changed technology has changed crime has changed each of these

changed crime has changed each of these

changed crime has changed each of these things is still happening and arguably a

things is still happening and arguably a

things is still happening and arguably a gathering speed but when it comes to

gathering speed but when it comes to

gathering speed but when it comes to policing and when it comes to the things

policing and when it comes to the things

policing and when it comes to the things that really matter I’m not sure that

that really matter I’m not sure that

that really matter I’m not sure that anything has really changed at all the

anything has really changed at all the

anything has really changed at all the job is still to save lives to find the

job is still to save lives to find the

job is still to save lives to find the lost to comfort the brokenhearted to

lost to comfort the brokenhearted to

lost to comfort the brokenhearted to defend the vulnerable and to confront

defend the vulnerable and to confront

defend the vulnerable and to confront the dangerous sometimes even to risk it

the dangerous sometimes even to risk it

the dangerous sometimes even to risk it all whilst I’m here talking to you there

all whilst I’m here talking to you there

all whilst I’m here talking to you there are men and women in blue out there

are men and women in blue out there

are men and women in blue out there prepared to step into harm’s way in

prepared to step into harm’s way in

prepared to step into harm’s way in defense of complete strangers they

defense of complete strangers they

defense of complete strangers they always have been to me and always will

always have been to me and always will

always have been to me and always will be the everyday heroes and heroines who

be the everyday heroes and heroines who

be the everyday heroes and heroines who police our streets and today I’d like to

police our streets and today I’d like to

police our streets and today I’d like to offer you an insight into their working

offer you an insight into their working

offer you an insight into their working lives in the form of a short lesson in

lives in the form of a short lesson in

lives in the form of a short lesson in forensic science

forensic science

forensic science in particular I’d like to introduce you

in particular I’d like to introduce you

in particular I’d like to introduce you to la cartes principal it’s most

to la cartes principal it’s most

to la cartes principal it’s most definitely an idea worth sharing Edmond

definitely an idea worth sharing Edmond

definitely an idea worth sharing Edmond Locard was a French forensic scientist

Locard was a French forensic scientist

Locard was a French forensic scientist born in the nineteenth century who gave

born in the nineteenth century who gave

born in the nineteenth century who gave his name to an idea that remains

his name to an idea that remains

his name to an idea that remains fundamental to the way in which we

fundamental to the way in which we

fundamental to the way in which we investigate crime in the 21st century la

investigate crime in the 21st century la

investigate crime in the 21st century la cartes principle says very simply that

cartes principle says very simply that

cartes principle says very simply that every contact leaves a trace every time

every contact leaves a trace every time

every contact leaves a trace every time two objects come into contact with one

two objects come into contact with one

two objects come into contact with one another an exchange happens picture the

another an exchange happens picture the

another an exchange happens picture the following scene if you will a family

following scene if you will a family

following scene if you will a family home in a quiet residential street a

home in a quiet residential street a

home in a quiet residential street a thief

thief

thief climbs over the back garden fence

climbs over the back garden fence

climbs over the back garden fence leaving footprints in the flowerbed he

leaving footprints in the flowerbed he

leaving footprints in the flowerbed he breaks a ground-floor window cutting

breaks a ground-floor window cutting

breaks a ground-floor window cutting himself as he does so leaving drops of

himself as he does so leaving drops of

himself as he does so leaving drops of blood on the sill as he climbs through

blood on the sill as he climbs through

blood on the sill as he climbs through he catches his clothing leaving fibers

he catches his clothing leaving fibers

he catches his clothing leaving fibers on the edges of the glass and once

on the edges of the glass and once

on the edges of the glass and once inside he leaves his fingerprints over

inside he leaves his fingerprints over

inside he leaves his fingerprints over all of the surfaces finally as he tries

all of the surfaces finally as he tries

all of the surfaces finally as he tries to make his escape the registration

to make his escape the registration

to make his escape the registration plate from his car is captured by his in

plate from his car is captured by his in

plate from his car is captured by his in hidden CCTV camera okay so he’s not the

hidden CCTV camera okay so he’s not the

hidden CCTV camera okay so he’s not the brightest of thieves

but I hope his small story offers just a

but I hope his small story offers just a small insight into the genius that is

small insight into the genius that is

small insight into the genius that is lockhart the police do their job well

lockhart the police do their job well

lockhart the police do their job well and they get to the scene quickly they

and they get to the scene quickly they

and they get to the scene quickly they find the footprints and the blood they

find the footprints and the blood they

find the footprints and the blood they recover the fibers and the fingerprints

recover the fibers and the fingerprints

recover the fibers and the fingerprints evidence of the suspect left at the

evidence of the suspect left at the

evidence of the suspect left at the scene and they catch up with him quickly

scene and they catch up with him quickly

scene and they catch up with him quickly enough to find mud from the flowerbed on

enough to find mud from the flowerbed on

enough to find mud from the flowerbed on the bottom of his shoes and microscopic

the bottom of his shoes and microscopic

the bottom of his shoes and microscopic fragments of glass all over his clothing

fragments of glass all over his clothing

fragments of glass all over his clothing and because they’re having a

and because they’re having a

and because they’re having a particularly good day in because it’s my

particularly good day in because it’s my

particularly good day in because it’s my story they even find everything that

story they even find everything that

story they even find everything that he’s stolen in the back of his car

he’s stolen in the back of his car

he’s stolen in the back of his car evidence from the scene carried by him

evidence from the scene carried by him

evidence from the scene carried by him it’s a powerful principle that explains

it’s a powerful principle that explains

it’s a powerful principle that explains how a great many crimes get solved

how a great many crimes get solved

how a great many crimes get solved traces of the scene carried by the

traces of the scene carried by the

traces of the scene carried by the suspect traces on from the suspect left

suspect traces on from the suspect left

suspect traces on from the suspect left at the scene because every contact

at the scene because every contact

at the scene because every contact leaves a trace but if you think about it

leaves a trace but if you think about it

leaves a trace but if you think about it a little more it seems to me that la

a little more it seems to me that la

a little more it seems to me that la cartes principle has an application that

cartes principle has an application that

cartes principle has an application that goes beyond simply the investigation of

goes beyond simply the investigation of

goes beyond simply the investigation of crime it has an application for every

crime it has an application for every

crime it has an application for every kind of human relationship and

kind of human relationship and

kind of human relationship and interaction every time two people come

interaction every time two people come

interaction every time two people come into contact with one another an

into contact with one another an

into contact with one another an exchange takes place whether between

exchange takes place whether between

exchange takes place whether between lifelong friends or passing strangers we

lifelong friends or passing strangers we

lifelong friends or passing strangers we encourage we ignore we hold out a hand

encourage we ignore we hold out a hand

encourage we ignore we hold out a hand or we withdraw it we walk toward so we

or we withdraw it we walk toward so we

or we withdraw it we walk toward so we walk away with less or we curse we love

walk away with less or we curse we love

walk away with less or we curse we love what we hate and every single contact

what we hate and every single contact

what we hate and every single contact leaves a trace the way that we treat and

leaves a trace the way that we treat and

leaves a trace the way that we treat and regard one another matters it really

regard one another matters it really

regard one another matters it really matters and in an increasingly uncertain

matters and in an increasingly uncertain

matters and in an increasingly uncertain and often frightening world it might

and often frightening world it might

and often frightening world it might even be the thing that matters most of

even be the thing that matters most of

even be the thing that matters most of all the painful privilege of policing is

all the painful privilege of policing is

all the painful privilege of policing is to see all of life in all its fractured

to see all of life in all its fractured

to see all of life in all its fractured pieces broken hearts and broken homes

pieces broken hearts and broken homes

pieces broken hearts and broken homes broken lives and broken bones police

broken lives and broken bones police

broken lives and broken bones police officers so often find themselves in the

officers so often find themselves in the

officers so often find themselves in the hurting places going where most couldn’t

hurting places going where most couldn’t

hurting places going where most couldn’t doing what most wouldn’t but it comes at

doing what most wouldn’t but it comes at

doing what most wouldn’t but it comes at a cost that’s a picture of me after a

a cost that’s a picture of me after a

a cost that’s a picture of me after a particularly painful night at work but

particularly painful night at work but

particularly painful night at work but here’s the thing I’ve worked with

here’s the thing I’ve worked with

here’s the thing I’ve worked with officers who’ve been injured much more

officers who’ve been injured much more

officers who’ve been injured much more seriously than me I’ve worked with

seriously than me I’ve worked with

seriously than me I’ve worked with officers who confronted gunman and

officers who confronted gunman and

officers who confronted gunman and disarmed those wielding knives I’ve

disarmed those wielding knives I’ve

disarmed those wielding knives I’ve worked with officers who’ve walked into

worked with officers who’ve walked into

worked with officers who’ve walked into the midst of unimaginable horrors the

the midst of unimaginable horrors the

the midst of unimaginable horrors the scenes of crimes and car crashes and

scenes of crimes and car crashes and

scenes of crimes and car crashes and every place in between I’ve worked with

every place in between I’ve worked with

every place in between I’ve worked with officers who have been first on scene

officers who have been first on scene

officers who have been first on scene following terrorist atrocities and have

following terrorist atrocities and have

following terrorist atrocities and have seen things in those places that defy

seen things in those places that defy

seen things in those places that defy comprehension I’ve seen things and done

comprehension I’ve seen things and done

comprehension I’ve seen things and done things myself that I wouldn’t wish on my

things myself that I wouldn’t wish on my

things myself that I wouldn’t wish on my worst enemy

worst enemy

worst enemy now I don’t see any of these things to

now I don’t see any of these things to

now I don’t see any of these things to impress or to alarm I say them simply

impress or to alarm I say them simply

impress or to alarm I say them simply because they’re true and it would be

because they’re true and it would be

because they’re true and it would be impossible to do this job for any length

impossible to do this job for any length

impossible to do this job for any length of time and to remain unaffected by it

perhaps I could tell you a little of my

perhaps I could tell you a little of my own story to do that I need to go back

own story to do that I need to go back

own story to do that I need to go back to April 2013 at the time I had the

to April 2013 at the time I had the

to April 2013 at the time I had the privilege of being the police commander

privilege of being the police commander

privilege of being the police commander for the borough of southwark in South

for the borough of southwark in South

for the borough of southwark in South London I was responsible there for about

London I was responsible there for about

London I was responsible there for about a thousand officers and staff and we

a thousand officers and staff and we

a thousand officers and staff and we collectively had a residential and

collectively had a residential and

collectively had a residential and business community of hundred

business community of hundred

business community of hundred mm to protect it had some of the highest

mm to protect it had some of the highest

mm to protect it had some of the highest levels of serious crime

levels of serious crime

levels of serious crime anywhere in Britain almost every kind of

anywhere in Britain almost every kind of

anywhere in Britain almost every kind of chaos almost everyday it was the best

chaos almost everyday it was the best

chaos almost everyday it was the best and the most fulfilling job that I’ve

and the most fulfilling job that I’ve

and the most fulfilling job that I’ve ever had but it was also the most

ever had but it was also the most

ever had but it was also the most challenging and the demand of most

challenging and the demand of most

challenging and the demand of most demanding six months into my time there

demanding six months into my time there

demanding six months into my time there I broke it began with a deepening sense

I broke it began with a deepening sense

I broke it began with a deepening sense of overwhelming exhaustion of the kind

of overwhelming exhaustion of the kind

of overwhelming exhaustion of the kind that I just couldn’t shake off it

that I just couldn’t shake off it

that I just couldn’t shake off it developed into a malevolent form of

developed into a malevolent form of

developed into a malevolent form of anxiety that would wake me in the middle

anxiety that would wake me in the middle

anxiety that would wake me in the middle of the night but leave me with no

of the night but leave me with no

of the night but leave me with no understanding of the reasons why and

understanding of the reasons why and

understanding of the reasons why and eventually came the depression now

eventually came the depression now

eventually came the depression now depression is not the same as sadness in

depression is not the same as sadness in

depression is not the same as sadness in fact sadness is to depression as a

fact sadness is to depression as a

fact sadness is to depression as a puddle is to the Pacific it’s a thing of

puddle is to the Pacific it’s a thing of

puddle is to the Pacific it’s a thing of raw horror and blind terror a

raw horror and blind terror a

raw horror and blind terror a waterboarding of the mind and it smashed

waterboarding of the mind and it smashed

waterboarding of the mind and it smashed me to the ground I was off work for

me to the ground I was off work for

me to the ground I was off work for seven months more than four years later

seven months more than four years later

seven months more than four years later I’m still recovering and initially at

I’m still recovering and initially at

I’m still recovering and initially at least it robbed me stripped me of

least it robbed me stripped me of

least it robbed me stripped me of everything that I had ever had

everything that I had ever had

everything that I had ever had confidence in of my personal identity as

confidence in of my personal identity as

confidence in of my personal identity as a husband as a dad as a man I just felt

a husband as a dad as a man I just felt

a husband as a dad as a man I just felt like a failure it stripped me of my

like a failure it stripped me of my

like a failure it stripped me of my professional identity as a police

professional identity as a police

professional identity as a police officer as a borough commander as a

officer as a borough commander as a

officer as a borough commander as a hostage negotiator as the man in the

hostage negotiator as the man in the

hostage negotiator as the man in the arena in the space of a few short days I

arena in the space of a few short days I

arena in the space of a few short days I went from running a borough to barely

went from running a borough to barely

went from running a borough to barely being able to run a bath it was a crisis

being able to run a bath it was a crisis

being able to run a bath it was a crisis of everything

and as I lay at home slowly and quietly

and as I lay at home slowly and quietly recovering I try to work out what the

recovering I try to work out what the

recovering I try to work out what the hell had happened to me and in truth it

hell had happened to me and in truth it

hell had happened to me and in truth it was a collision a combination of things

was a collision a combination of things

was a collision a combination of things the first was just the simple wear and

the first was just the simple wear and

the first was just the simple wear and tear of a policing life shift working

tear of a policing life shift working

tear of a policing life shift working extended hours over prolonged periods of

extended hours over prolonged periods of

extended hours over prolonged periods of time but more than anything else the

time but more than anything else the

time but more than anything else the consequences of the repeated exposure to

consequences of the repeated exposure to

consequences of the repeated exposure to extreme trauma as a society I don’t

extreme trauma as a society I don’t

extreme trauma as a society I don’t think we’ve really properly begun to

think we’ve really properly begun to

think we’ve really properly begun to understand the impact on our police

understand the impact on our police

understand the impact on our police officers of the repeated exposure to

officers of the repeated exposure to

officers of the repeated exposure to extreme trauma but alongside that

extreme trauma but alongside that

extreme trauma but alongside that general wear and tear there are just

general wear and tear there are just

general wear and tear there are just particular faces and places each of my

particular faces and places each of my

particular faces and places each of my colleagues could tell you their own

colleagues could tell you their own

colleagues could tell you their own stories the scenes and the screams that

stories the scenes and the screams that

stories the scenes and the screams that sear themselves into your soul and

sear themselves into your soul and

sear themselves into your soul and remain then there were the expectations

remain then there were the expectations

remain then there were the expectations of the day job more and more and more

of the day job more and more and more

of the day job more and more and more being demanded with less and less and

being demanded with less and less and

being demanded with less and less and less to give all in an environment of

less to give all in an environment of

less to give all in an environment of seemingly relentless criticism from the

seemingly relentless criticism from the

seemingly relentless criticism from the media and from politicians in particular

media and from politicians in particular

media and from politicians in particular and then of course there are things that

and then of course there are things that

and then of course there are things that have nothing to do with policing but

have nothing to do with policing but

have nothing to do with policing but everything to do with me we all have our

everything to do with me we all have our

everything to do with me we all have our stories but it was the combination of

stories but it was the combination of

stories but it was the combination of these things that left me in pieces the

these things that left me in pieces the

these things that left me in pieces the good news though is that I’m a heck of a

good news though is that I’m a heck of a

good news though is that I’m a heck of a lot better than I was and I just like to

lot better than I was and I just like to

lot better than I was and I just like to leave you today with three practical

leave you today with three practical

leave you today with three practical thoughts and three personal thoughts how

thoughts and three personal thoughts how

thoughts and three personal thoughts how that’s been possible and it continues to

that’s been possible and it continues to

that’s been possible and it continues to be possible first practically is to rest

be possible first practically is to rest

be possible first practically is to rest we live in a world and in a society that

we live in a world and in a society that

we live in a world and in a society that is moving far faster than is good for

is moving far faster than is good for

is moving far faster than is good for any of us

any of us

any of us I think it was Gandhi who said there’s

I think it was Gandhi who said there’s

I think it was Gandhi who said there’s more to life than increasing its speed

more to life than increasing its speed

more to life than increasing its speed but I’m not sure anyone was listening

but I’m not sure anyone was listening

but I’m not sure anyone was listening out of necessity these days I am having

out of necessity these days I am having

out of necessity these days I am having to slow down and to learn how to rest so

to slow down and to learn how to rest so

to slow down and to learn how to rest so that’s the first thing the second thing

that’s the first thing the second thing

that’s the first thing the second thing is medication one of the first things I

is medication one of the first things I

is medication one of the first things I did when I got up this morning was to

did when I got up this morning was to

did when I got up this morning was to take an antidepressant and there is

take an antidepressant and there is

take an antidepressant and there is absolutely no shame in the fact they

absolutely no shame in the fact they

absolutely no shame in the fact they don’t work for everybody but they work

don’t work for everybody but they work

don’t work for everybody but they work for me and for a lot of others besides

for me and for a lot of others besides

for me and for a lot of others besides and so I’ll take them for as long as I

and so I’ll take them for as long as I

and so I’ll take them for as long as I need to and thirdly counseling I see a

need to and thirdly counseling I see a

need to and thirdly counseling I see a wonderful counsellor I’ve seen her

wonderful counsellor I’ve seen her

wonderful counsellor I’ve seen her throughout the last four years and she

throughout the last four years and she

throughout the last four years and she helps me to untangle the mysteries of me

helps me to untangle the mysteries of me

helps me to untangle the mysteries of me and put myself back together again

and put myself back together again

and put myself back together again the reality is we all need someone to

the reality is we all need someone to

the reality is we all need someone to talk to sometimes so those are the three

talk to sometimes so those are the three

talk to sometimes so those are the three practical things and last of all three

practical things and last of all three

practical things and last of all three personal things the first of those is

personal things the first of those is

personal things the first of those is faith the religion that I’d grown up

faith the religion that I’d grown up

faith the religion that I’d grown up with failed me but a small fragment of

with failed me but a small fragment of

with failed me but a small fragment of faith remained I’ve begun to discover

faith remained I’ve begun to discover

faith remained I’ve begun to discover something of the mystery of grace the

something of the mystery of grace the

something of the mystery of grace the rumor that I’m loved beyond measure just

rumor that I’m loved beyond measure just

rumor that I’m loved beyond measure just as I am secondly friends both at work

as I am secondly friends both at work

as I am secondly friends both at work and at home who loved me and walked

and at home who loved me and walked

and at home who loved me and walked alongside me until I was able to walk on

alongside me until I was able to walk on

alongside me until I was able to walk on my own again and thirdly family

my own again and thirdly family

my own again and thirdly family particularly my three girls and my

particularly my three girls and my

particularly my three girls and my extraordinary wife is sitting over there

extraordinary wife is sitting over there

extraordinary wife is sitting over there she’s called bear and she was the harbor

she’s called bear and she was the harbor

she’s called bear and she was the harbor wall to whom I lashed my little boat and

wall to whom I lashed my little boat and

wall to whom I lashed my little boat and she stayed strong and true I suppose it

she stayed strong and true I suppose it

she stayed strong and true I suppose it really was love that saved me which is

really was love that saved me which is

really was love that saved me which is possibly not the first thing you’d

possibly not the first thing you’d

possibly not the first thing you’d expect to hear

expect to hear

expect to hear officer say but in this increasingly

officer say but in this increasingly

officer say but in this increasingly uncertain world what is it that we can

uncertain world what is it that we can

uncertain world what is it that we can have confidence in maybe love is all we

have confidence in maybe love is all we

have confidence in maybe love is all we need between friends and strangers

need between friends and strangers

need between friends and strangers between lovers and foes between

between lovers and foes between

between lovers and foes between neighborhoods and Nations the way that

neighborhoods and Nations the way that

neighborhoods and Nations the way that we regard and treat one another matters

we regard and treat one another matters

we regard and treat one another matters it really matters and every contact

it really matters and every contact

it really matters and every contact leaves a trace

”

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