FSC239Y5 Lecture : FSC239 Jan 18 2011
Document Summary
Chemistry section: glass o, paint, hair and fibre soil fire investigation. Gsr gunshot residue analyze non-biological substances lachrymators/pepper spray o: dye packs o, misc. food tampering explosives. What is an explosive? chemical containing a high amount of potential energy capable of undergoing rapid chemical reaction no external reactants required, such as atmospheric oxygen. Secondary unconfined burn confined deflagration (explosion) reaction speed is slower than speed of sound propellant projectiles (bullets, fireworks) ex. smokeless powder, black powder, pyrodex readily available commonly used in homemade explosive devices. Ied improvised explosive device (ex. pipe bombs) High explosives sensitive to shock and heat detonation confinement not needed reaction speed is higher than speed of sound. Primary o: detonators, projectiles/priming caps o o o o less sensitive, more powerful requires large energy input to detonate commercial or military use. Who does the explosives scene investigation police explosive disposal units police emergency task force. Etf police emergency response team ert police identification officers.
