Supplementing traditional improvised explosive devices by adding a biological or chemical agent can increase the length of time and the effective area of danger. If a biological weapon releases deadly viruses or bacterial pathogens into the environment, agriculture, animals, water, soil and air are at risk from contamination and recovery then becomes a tremendous challenge requiring resources, equipment and expertise which may be very limited or unavailable. Even more so, the effects of a biological agent may not be felt for hours or days after its release, severely complicating detection and containment. On the simplest scale, a plastic water bottle containing caustic or toxic agents with a hand grenade taped to its exterior becomes a weapon with surgical strike capabilities and a means of focused assassination. Binary Devices are weapons with two chemicals held in separate sections that are mixed after firing to produce deadly substances such as Sarin. Detonation can be through impact, fuse, timed dissolve, preliminary charge, ballistic, wired or wireless electrical signal such as a mobile phone for remote and distance connect. A deterrent to this type of electronic relay is a frequency jammer now in common use with US Forces in the Middle East to protect fortified positions.
Law Enforcement whose basic goal is to protect the public must deter these acts prior to occurrence which requires preplanning, acquiring equipment, specialized training and to develop an infrastructure to command, and manage Operations, Planning, Logistics and Administrative functions of Incidence Response.