BOMBS & EXPLOSIVES
How Bombs Work
An overview of not only how bombs work, but links to how other explosives work, such as grenades, landmines, C-4, dynamite, nuclear bombs, dirty bombs, and more
Types of Explosives
A brief overview of types of explosives and descriptions
FIREARMS & BALLISTICS
Weapons advice and consultation from an aptly named Army veteran and weapons instructor.
A brief, but helpful overview of calibers
How to identify various types of firearms and bullets, with photos and illustrations
Firearms Identification and Ballistics
Includes an overview, history, basic information for those who know virtually nothing about guns, and links to more information
Lots of articles and briefs, including wound ballistics
Firearms, Tools, Toolmarks, Serial Restoration
A nice and brief overview page from the Michigan State Police of the topic, with pictures of the equipment used in determinating ballistics
Information on firearms including terminology, “anatomy,” ballistics, patterns of tissue injury (with graphic photos), crminialistics lab methods, examinations of gunshot residue, and other issues and injuries.
Links to information on weapons, ammunition and accessories
GunHoo’s History of Firearms
The Magic Bullet
Information on ballistics, with case studies
National Integrated Ballistic Information Network (NIBIN)
Tool of the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) that allows firearms technicians of federal, state, and local law enforcement agencies to use ballistic identification digital imaging equipment to compare firearm and tool mark evidence. This site includes case file success stories.
National Rifle Association
Links to news and their various programs, including the magainze Guns and Hunting, which has product reviews: http://www.gunsandhunting.com/index.html
Practical Pathology of Gunshot Wounds
A discussion of the analysis and interpretation of fatal gunshot wounds
The world's largest net news group for technical discussion about firearms, also includes firearms info and iamges
Some people may find this a little disturbing, and you have to be 18 or over to visit, but the site is “intended solely for the dissemination of information for lawful purposes to military and law enforcement precision riflemen, as well as interested civilian long-range precision shooting competitors.” It has info on weapons, ballistics, ammunition and the like.
A bibliography from the Firearms Tactical Institute of articles on the basics of terminal performance, wounding effects and wounding effectiveness.
This is a catalog, but if you want to all the types of knives you can purchase out there, this is a good place to start
An index of poisonous plants
Chemical Databases and Resources
A list of toxicology references for chemicals, pharmaceuticals and poisons.
A list of various substances that have psychoactive properties, with descriptions; could be useful for poisoning in a crime story setting
Just as it says, “a nice listing of poisons and their symptoms and signs”