Simona Francese: Your fingerprints reveal more than you think
Simona Francese: As nossas impressões digitais revelam mais do que julgamos
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:
das minhas impressões digitais"?
all over my wine glass."
when you visit a friend,
quando visitam um amigo,
on every surface that you touch?
em tudo o que tocaram?
to sit without touching anything?
sem tocar em nada?
the power of fingerprints, too.
também se esquecem
the twisted parting of lines
disposição retorcida de linhas
as nossas impressões digitais.
an entire world of information
quase sempre invisível.
are made up of molecules
são feitas de moléculas
in very different amounts ...
em quantidades muito diferentes,
and then we sweat out
e depois saem com a transpiração
our fingertips with
as pontas dos dedos
como o sangue, tinta e gordura,
like blood, paint, grease,
the storytellers of who we are
sobre quem somos
the right technology to make them talk.
certa para as fazer falar.
of unthinkable capabilities.
de possibilidades inconcebíveis.
in the woods three days later,
foi encontrado no bosque,
the search from over 20 men
in that area on the same day.
na mesma área, naquele dia.
overlapping fingerprints
muito ténues, sobrepostas,
wrapped around Katie's neck.
enrolada à volta do pescoço de Kate.
cannot help the police
ténues e sobrepostas
a fazer uma identificação.
this might have been the end of the road,
ser o fim da investigação,
we can make the difference.
o nosso laboratório,
our cutting-edge technology
a nossa tecnologia de ponta
analysis of fingerprints.
e digital das impressões digitais.
a UV laser at the print,
um laser UV nas impressões
of the molecules from the print,
moléculas absorvidas, nas impressões,
by the mass spectrometer.
pelo espectrómetro de massa.
the weight of the molecules --
o peso das moléculas
they indicate that mass.
indicam essa massa.
forensically speaking.
em termos forenses.
to the evidence that we have
às provas que tínhamos
of condom lubricants.
de lubrificante de preservativos.
that enable us to even suggest
que até nos permitem indicar
que pode ter sido usada.
have obtained a search warrant
um mandado de busca
of condom in Dalton's premises.
de preservativo em casa de Dalton.
also having records for sexual assaults,
cadastro de ataques sexuais,
menos provável.
the less likely suspect.
enough to make an arrest?
para fazer uma detenção?
with our investigation.
a nossa investigação.
of other two very interesting molecules.
muito interessantes.
and consume cocaine at the same time.
cocaína, ao mesmo tempo.
the effects of cocaine,
os efeitos da cocaína,
on the state of mind
para o estado de espírito
whilst perpetrating the crime.
Thomson is a drug addict,
que Thomson é viciado em drogas
for psychotic episodes,
de episódios psicóticos,
the antidepressant was prescribed.
tinha sido receitado o antidepressivo.
the more likely suspect.
o suspeito mais provável.
where these molecules are coming from,
onde aparecem essas moléculas,
as duas impressões digitais.
can help us further.
ainda nos pode ajudar mais.
these molecules are on a fingerprint.
aquelas moléculas numa impressão digital.
corresponds to a mass,
corresponde a uma massa,
by selecting each of those molecules,
escolhendo cada uma dessas moléculas,
on a fingermark.
presentes numa impressão digital.
muito reveladoras,
of the same mark --
da mesma marca
of the same fingerprint --
da mesma impressão digital —
that we have detected.
que detetámos.
as possibilidades são,
from different individuals,
de indivíduos diferentes,
is not identical,
não seja idêntica.
to visualize those unique molecules
para visualizar essas moléculas especiais
and not in the other one.
e na outra não.
the two ridge patterns.
os dois padrões de linhas.
to identify one of the two fingerprints,
identificar uma das impressões digitais
the two separate images
duas imagens separadas
on one fingerprint only --
apenas na outra impressão digital,
molecules that I've seen?
moléculas que vimos?
show me where they are.
para me dizer onde é que elas estão.
of the killer's fingerprint show up.
da impressão digital do assassino.
in the killer's print.
na impressão digital do assassino.
start matching very nicely
começa a corresponder perfeitamente
sobre Thomson,
is still not good enough
ainda não é muito boa
of the same fingerprint,
de imagens da mesma impressão digital,
of continuity and clarity?
de continuidade e nitidez.
of the fingerprint
da impressão digital
through the database.
na base de dados.
para Thomson.
of the crime aren't real,
do crime não são reais
we've been confronted with,
com que somos confrontados
that we can provide --
que podemos fornecer,
to provide the police.
that after nine years of intense research,
após nove anos de intensa investigação,
to police investigations.
para investigações policiais.
cada vez mais amplamente,
more about the suspect,
sobre os suspeitos.
for criminal profiling.
para traçar o perfil de um criminoso.
of behavioral patterns
de padrões comportamentais
to belong to a certain type,
pertencer a um determinado tipo,
but subjective evaluation,
especializada, mas subjetiva,
of the fingerprint,
molecular das impressões digitais.
podem funcionar em conjunto.
contam histórias,
sobre a nossa saúde,
your routines,
o nosso estilo de vida, as nossas rotinas,
the storytellers of our secrets
as histórias dos nossos segredos
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