Police Investigators can now tell what a Criminal ate, and drank before they commited the crime
The equipment can detect certain food and drink, such as garlic and coffee, as well as work out if a criminal has taken drugs.Scientists have already used the tool to determine the s*x of a criminal and are now working on it being able to test for medical conditions.Speaking about an example fingerprint, she explained: ‘We found the presence of cocaine in traces, we also found the presence of cocaine metabolite, that is very good because it actually tells us immediately the person who left the mark has not just touched cocaine but actually ingested it.'So that changes the forensic scenario very quickly. With food, I’ve tried that on my own fingerprints,I’ve drunk a cup of coffee, then looked at my own finger marks at a certain time, after ten minutes, and could see a very clear signal for caffeine.‘We can tell not just what you’ve touched but what’s coming out through your body and through the sweat.
+3 The technology can detect food and drink, such as garlic and coffee, from fingerprints (pictured) ‘We’ve started with looking at determining the s*x of offenders through the unique chemistry of the finger marks and one of our biggest ambitions is to look at medical conditions, again from unique chemicals that are present through finger marks.’Dr Francese explained that because meals are made up of such complex components, it might not ever be possible to say, for example, that person ate meatballs for dinner.Source= Dailymail