What is the your most scientifically challenging case whilst working in conjunction with the police?

Question: What is the your most scientifically challenging case whilst working in conjunction with the police?
- Keywords:
  forensic,
  police,
  research
Asked by gumble to Viv on 9 Mar 2012. This question was also asked by mooimapig.
- Viv Lyons answered on 9 Mar 2012:
  
  Hi
  
  Unfortunately I can’t properly answer your question because I don’t directly work on police cases. I think the most challenging areas of work are where I need to go and learn new subjects to be able to think around a problem. I’ve recently had to go and learn a bunch of electronics in order to understand how they work and could be used. And whilst this was a challenge I did enjoy increasing my knowledge and applying it to a real problem.

Question: What is the your most scientifically challenging case whilst working in conjunction with the police?