A city charter or town charter (generically, municipal charter) is a legal document establishing a municipality such as a city or town. The concept developed in Europe during the middle ages and is considered to be a municipal version of a constitution.
The .223 caliber AR-15 carbine is becoming increasingly popular with law enforcement agencies for patrol. There are numerous companies manufacturing the AR-15 model carbines, with Colt being the dominant system among the military and law enforcement community (www.colt.com). Other manufacturers are: Armalite, Bushmaster, DPMS, Eagle Arms, Knightâs Mfg.
Speed enforcement using aircraft can actually be very efficient. It's usually done by state police or highway patrols. A fixed-wing or rotary-wing aircraft flies over a stretch of highway where speeding is common. An observer in the aircraft times the interval it takes cars on the highway to move between two points marked on the pavement.