Sniffing out a career in chemistry
Forensic science PhD student Jonathon Brooks uses analytical chemistry to train police dogs used to find victim remains. He works with police taskforces around the UK to increase the accuracy and versatility of police recovery dogs.
We love to celebrate the diversity of career paths that a background in the chemical sciences can open up (you may remember our “not all chemists wear white coats” posters…). So when PhD student Jonathon Brooks tweeted the line “not every scientist is stuck in the lab” with a photo taken on a beautiful Cumbrian lake, in a boat with a police dog, we couldn’t help but investigate. We found an incredibly driven and enthusiastic young researcher, working on a rather unusual project…
Based at the University of Leicester’s chemistry department, Jonathon investigates the volatile organic compounds given off when biological matter decomposes, and how we can use these substances to train victim recovery police dogs to find human remains. As the remains break down, these small molecules are released into the surrounding environment, many of which can be detected by dogs.
Depending on the conditions, different compounds will be released, so police search dogs need to be able to recognise a vast array of molecules. Jonathon is hoping his research can improve the accuracy of recovery dogs tracking remains in a variety of circumstances.
Cross-county collaborations
In the lab, Jonathon works alongside a Masters student to replicate different decomposition conditions and examine the changes in the compounds given off. He uses a variety of analytical techniques to characterise and measure the substances released. Through collaborations with Nottingham Police and, more recently, Cumbrian Police, Jonathon then works with police officers to train their recovery dogs to recognise these different compounds.
“It’s not just land-based. We’re looking to have dogs trained to find remains underwater as well. This is a new taskforce recently introduced in the UK and we’re looking to make it more accurate; investigating whether we can use the chemicals released to train these dogs to be more sensitive to detecting where the remains are.”
Pet detectives
Jonathon uses animal remains in the majority of his lab research, as work on human samples is restricted in the UK. For those thinking it all sounds a bit gruesome, Jonathon explains that you quickly get used to it: “I hardly notice it now. At the start, I was a bit hesitant but when you realise the benefits the work can have, you just get over it.”
And the hours in the lab are more than worth it when Jonathon is able to go out with the taskforce and get hands-on (or should that be paws-on?) with the dog training himself: “I absolutely love dogs. Getting to interact with all of the puppies when they start training them is really adorable. Watching them work is incredible. I know a lot of people don’t believe the dogs are actually detecting anything – I was quite sceptical about working with submerged remains – but seeing them detect the training aids when you’ve given them no clues at all is amazing.”
“Back in the lab, I work with my supervisor to work out how we can replicate submerged conditions. Obviously you have a lot of variables you can investigate, for example temperature, whether they’re in clothes or not, the depth of the water… The main challenge is to design a really accurate experiment to make sure you’re accounting for all of those different factors.”
While Jonathon has been inspired to try out different training techniques with his own dog, a cocker spaniel called Marley, nothing has stuck so far: “My dog is somewhat of a handful… I end up getting taken out for walks rather than the other way around.”
Helping others make connections
Around his PhD, Jonathon is also president of the Forensic Science Society at the University of Leicester. He works alongside the committee to organise events for the forensic science students, giving current undergraduates the opportunity to see where their degree might take them.
“Through my research, I have a lot of contacts on a range of forensics subjects. We invite guest speakers to the university so that current students can find out what’s going on in the wider field.
“I think it’s really important that undergraduates get this opportunity and I think a lot of lecture courses don’t always highlight the importance of networking and keeping up to date with current research. The projects that I’m working on now are a result of my networking – seeing what research is out there and who’s doing what. I really wanted to give that back to the community.
“We recently took a group of first and third year undergraduate students to a conference and it was fantastic to see how engaged they were talking to people in the field. It was really nice to see them get the chance to network, without our direct help, but as a result of our organisation.”
Crisis management
Jonathon is also a member of KENYON International Emergency Services, a crisis management organisation that brings together relevant experts in the case of natural disasters. He can be called out to a disaster, anywhere in the world, as a human identification officer, to help with victim recovery.
Moving the UK forward
Jonathon recently received one of our Researcher Mobility Grants, which give early career researchers funding for a short placement at a different institution to where they’re currently based. They help early stage researchers build links with potential collaborators and enhance the scope of their work. Jonathon spent a month at the University of Technology Sydney (UTS), in the centre for forensic science working with the Shari Forbes group. The centre has an associated body farm, so Jonathon can work with human samples. Watch this space for an update on how he got on.
In the future, Jonathon wants to establish his own research group in the area of victim recovery, with different teams of researchers investigating different variables. He sees the Sydney centre as a good model to work towards.
“I want to move the UK forward in victim recovery detection. We’re quite behind in terms of dog training. We need to spend more time looking at, and understanding, all of the fundamental science – we’re often jumping ahead but we need to pause and test the applications of the science in the field.”
Jonathon also feels it’s incredibly important to continue building links with police taskforces, bridging the gap between academic research and work in the field.
“I think the communication between police forces and universities is quite restricted at the moment. Not a lot of researchers get the opportunity to go out there and work with a taskforce. Once I meet a police officer, we always stay in contact and they can talk to me about the project or any problems that they’re facing on a case. It’s all about making sure that communication remains open so they’ve always got that guidance there to support their work.”
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