Simona Francese: Your fingerprints reveal more than you think
Simona Francese: Nossas impressões digitais revelam mais do que imaginamos
Simona Francese is a chemist by training who is passionate about forensics. Full bio
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during a romantic dinner,
durante um jantar romântico:
all over my wine glass."
na taça de vinho inteira"?
when you visit a friend,
ao visitar a casa de um amigo,
on every surface that you touch?
em cada superfície em toca?
to sit without touching anything?
the power of fingerprints, too.
subestimam o poder das digitais.
the twisted parting of lines
à combinação de linhas torcidas
an entire world of information
e geralmente invisível.
são feitas de moléculas
are made up of molecules
in very different amounts ...
em quantidades bem distintas,
and then we sweat out
e depois expelimos através do suor
our fingertips with
talvez contaminemos nossas digitais
like blood, paint, grease,
como sangue, tinta, gordura,
the storytellers of who we are
de quem nós somos
the right technology to make them talk.
para fazê-las falarem.
of unthinkable capabilities.
de possibilidades inimagináveis.
in the woods three days later,
numa floresta três dias depois,
the search from over 20 men
in that area on the same day.
naquele mesmo dia.
digitais pouco nítidas e sobrepostas
overlapping fingerprints
wrapped around Katie's neck.
em volta do pescoço de Katie.
cannot help the police
e sobrepostas não ajudam a polícia
this might have been the end of the road,
esse seria o fim da investigação,
we can make the difference.
our cutting-edge technology
para auxiliar na investigação.
de espectrometria de massa
analysis of fingerprints.
e de imagem das impressões digitais.
a UV laser at the print,
um raio UV na digital
of the molecules from the print,
das moléculas da digital,
by the mass spectrometer.
pelo espectrômetro de massa.
the weight of the molecules --
o peso das moléculas,
they indicate that mass.
indicam essa massa.
quais são essas moléculas:
forensically speaking.
falando em termos forenses.
to the evidence that we have
à evidência que temos
of condom lubricants.
de lubrificante de preservativo.
that enable us to even suggest
que nos permitem até mesmo sugerir
pode ter sido utilizada no estupro.
have obtained a search warrant
já obteve um mandado de busca
of condom in Dalton's premises.
na residência de Dalton.
also having records for sexual assaults,
já possuem histórico de agressão sexual,
the less likely suspect.
o suspeito menos provável.
enough to make an arrest?
é suficiente para uma detenção?
with our investigation.
em nossa investigação.
of other two very interesting molecules.
duas moléculas muito interessantes.
and consume cocaine at the same time.
e cocaína ao mesmo tempo.
the effects of cocaine,
os efeitos da cocaína.
on the state of mind
do estado mental
whilst perpetrating the crime.
Thomson is a drug addict,
Thomson é viciado em drogas
for psychotic episodes,
de episódios psicóticos,
the antidepressant was prescribed.
fora prescrito o antidepressivo.
the more likely suspect.
o suspeito mais provável.
where these molecules are coming from,
de onde vêm essas moléculas,
aquelas duas digitais.
can help us further.
de massa podem nos ajudar.
these molecules are on a fingerprint.
estão na impressão digital.
corresponds to a mass,
corresponde a uma massa,
by selecting each of those molecules,
selecionando cada uma das moléculas,
on a fingermark.
numa impressão digital.
of the same mark --
da mesma impressão,
of the same fingerprint --
da mesma impressão digital,
that we have detected.
as moléculas que detectamos.
se vierem de indivíduos diferentes,
from different individuals,
is not identical,
to visualize those unique molecules
para visualizar essas moléculas únicas
and not in the other one.
e não na outra.
the two ridge patterns.
os dois padrões distintos de digitais.
to identify one of the two fingerprints,
identificar uma das duas digitais,
the two separate images
as duas imagens separadamente
on one fingerprint only --
em apenas uma impressão digital:
molecules that I've seen?
show me where they are.
e ele vai mostrar onde estão.
of the killer's fingerprint show up.
da digital do assassino aparecem.
in the killer's print.
na digital do assassino.
start matching very nicely
começam a combinar muito bem
da polícia sobre Thomson,
is still not good enough
ainda não é boa o suficiente
of the same fingerprint,
de imagens da mesma digital,
of continuity and clarity?
de continuidade e clareza?
of the fingerprint
bem nítida da impressão digital
through the database.
no banco de dados.
com a digital de Thomson.
of the crime aren't real,
do crime não são reais,
we've been confronted with,
com o qual nos confrontamos
that we can provide --
que podemos oferecer,
to provide the police.
that after nine years of intense research,
após nove anos de intensa pesquisa,
to police investigations.
com investigações policiais.
more about the suspect,
for criminal profiling.
para estudos de perfil criminal.
of behavioral patterns
de padrões de comportamento
to belong to a certain type,
como pertencentes a certo tipo,
but subjective evaluation,
especializada, mas subjetiva,
of the fingerprint,
molecular das impressões digitais,
podem andar juntas.
que as moléculas são reveladoras,
your routines,
nosso estilo de vida,
the storytellers of our secrets
ABOUT THE SPEAKER
Simona Francese - Analytical chemistSimona Francese is a chemist by training who is passionate about forensics.
Why you should listen
Simona Francese is a Professor of Forensic and Bioanalytical Mass Spectrometry at Sheffield Hallam University in the UK. As she writes: "I have been fascinated by forensics since I was 17, and I was determined to pursue an educational route that eventually would enable me to contribute to secure societies. As always in life, nothing is straightforward. I enrolled in the chemistry course because it was the closest degree at the time that could lead me to where I wanted to be. I ended up doing a PhD and post-doctorate fellowships working with viruses and diseases. But I was always focused on my ultimate objective, and throughout I developed a strong expertise in mass spectrometry, which is an extremely versatile analytical technique. This was crucial.
"When I obtained my first lectureship, I had the freedom to build my own research, and I used mass spectrometry imaging to develop ways to profile individuals from their fingermarks, thus helping police with their investigations. What has the suspect been handling? What is their lifestyle? What did he do prior to or while committing the crime? These are some of the questions that the developed technology can answer, and we are working on providing additional information -- for example, on the pathological or pharmacological state of the individual, just from looking at their fingermark! A fantastic achievement for me, but the best accomplishment was keeping the focus for 14 years and remaining determined to finally be able to do what I have always been so passionate about."
Simona Francese | Speaker | TED.com