There are a number of sources of help which are relevant to Forensic or other investigative work
Courses on Fire Investigation and Explosions are given by
For Degress in Forensic Chemistry contact
For Private Investigator work internationally contact
Domestic Investigation Services is a team of professional investigators who assist in infidelity, child custody and cheating investigations.
If you have an interest insome of our very specialised techniqes - information can be found at http://en.wikipedia.org/wiki/Bloodstain_pattern_analysis