A little under a year ago, Chemistry Matters provided an all-day legal sampling seminar on best practices, requirements and techniques for legal sampling.
During my seminars on arson and legal sampling over the years, one fundamental question is asked a lot regarding the collection of samples for ignitable liquid residue (ILR) analysis for a potential arson investigation. That question is, "Do my samples really need ice for storage and transport to the laboratory?"
I was testifying several weeks at a trial for a case I have been working on for three years. Most legal cases can drag on for very long periods of time. All cases that I have been on have lasted a minimum of 2 years.