“Police have long had what they considered ‘non-lethal’ weapons at their disposal, including pepper spray, stun guns and bean bag projectiles. But even those weapons have caused deaths, leading to a search for ‘less lethal’ alternatives. Micron Products Inc., based in Fitchburg, makes the new ammunition, which are much larger than rubber bullets and have silicone heads that expand and flatten on impact, enhancing the pain and incapacitating a suspect. Sixteen law enforcement agencies in the U.S. and six in Canada have purchased the projectiles, including SWAT units of the Los Angeles County and Sacramento County Sheriff’s Departments in California.”
http://www.concordmonitor.com/readerservices/businessxml/18332772-95/police-seek-less-lethal-weapons