0129 explosive.doc

3 Pages

Communication, Culture and Technology
Course Code
Hisham Ragab

This preview shows page 1. Sign up to view the full 3 pages of the document.
Explosives Chemistry Section - Explosives investigation - Fire investigation - Trace evidence - Glass - Soil - Paint - Hair & Fibre - Gun Shot Residue (GSR) -Analyze non-biological substances - Lachrymators/ Pepper Spray - Dye packs Food Tampering - Miscellaneous Chemistry Section Explosives Group - 3 scientists in Toronto/CFS - 3 technologists - 10 cases per year pre-2007 - 20-30 cases per year 2008 owned - 1 Assistant Section Head (Manager) - Intact - Trace What does the Explosives Scene Investigation? - Police Explosive Disposal Units (EDU) - Police Emergency Task Forces (ETF) - Police Emergency Response Teams (ERT) - Police identification Offices (Ident) What is an Explosion? Asudden release of a larger amount of energy Potential energy -> Kinetic energy - Blast wave - Propulsion of debris - Light and/or heat (smoke/fire sometimes) Types of explosions - Atomic explosions - Nuclear - Emit Infrared and UV radiation - Physical explosions - Rapid change in physical state - Potential Energy -> Kinetic Energy - Chemical explosions - Extremely rapid chemical reaction - Exothermic reaction = release of heat - Generation of large quantities of gas, pressure/shock wave, high temperatures, noise Fire Triangle: Oxidizer, Oxygen; Heat, Ignition Source; Fuel Explosion - (combustion) deflagration detonation - (slow oxidation) subsonic supersonic Bottle Bombs “Axe Bombs” What is an Explosive? - Legally/”ExplosivesAct”:An explosive is material manufactured for that purpose - Any material that can be made to explode – to produce an explosion - Materials that aren’t manufactured or intended to be an explosives can be made to ‘explode’ - Intent - Chemical explosives - Chemicals containing a high amount of potential energy - Molecules contain oxygen and fuel, or chemical mixture of fuel and oxidizer - C
More Less
Unlock Document

Only page 1 are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.