Due to the varied and unpredictable nature of police work, incumbents may also be required to perform the following: Measure distances using calibrated instruments such as when investigating traffic accidents or processing crime scenes; make precise arm-hand positioning movements and maintain static arm-hand position such as when sighting and shooting a firearm; direct traffic which requires continuous and repetitive arm-hand movements; use sufficient strength to enable the incumbent to sprint, jump, or physically overcome resistance when chasing or apprehending suspects; coordinate the movement of more than one limb simultaneously such as when using a hand radio while driving a vehicle or searching a building with firearm drawn, flashlight on and opening and closing doors; bend or stoop repeatedly and continuously over time such as getting in and out of a patrol car or gathering evidence at crime scenes; patrol officers wear a carrier vest or a 15 pound utility/gun belt which requires the continuous support from stomach and lower back muscles; a patrol officer typically spends 7 - 8 hours per day driving a vehicle which requires the continuous support of lower back muscles; climbing ladders and searching rooftops requires lifting arms above shoulder level and working at heights greater than ten feet; searching for suspects or lost persons may require walking over rough, uneven, slippery or rocky surfaces including fields, parks, hillsides and creeks; an officer is required to listen for alarms, screams, breaking glass or other suspicious and unusual noises that may require investigation; move heavy objects such as equipment (50 pounds and more), and lift and carry injured or intoxicated persons short and long distances; work outdoors in a variety of weather conditions with exposure to the elements; tolerate very hot and very cold temperatures; sit for extended periods of time and may or may not be able to change positions such as when sitting in a patrol vehicle, or performing surveillance; foot beat and search activities require walking for extended periods of time, unable to stop, sit or rest at will; crowd and traffic control duties require standing for extended periods of time, unable to sit or rest at will. Patrol assigned area of the City in a car, on a motorcycle, or on foot; enforce local, State and Federal laws; respond to calls related to the protection of life and property, traffic incidents, and other required emergencies; prepare reports of arrests made, activities performed, and unusual incidents observed; conduct both preliminary and follow-up investigations of disturbances, criminal incidents, hazardous incidents, vehicle accidents, and deaths; make arrests; interrogate suspects and interview victims, complainants and witnesses; coordinate and conduct detailed investigations of violent crimes, child abuse, property crimes, vice, gaming, and narcotics violations; testify and present evidence in court; provide backup assistance for other officers and personnel; collect, preserve, and maintain evidence, found property, and property for safekeeping; assist and advise motorists and enforce traffic safety laws by issuing citations and warnings; search, fingerprint, and transport prisoners; respond to demonstrations, riots, hostage situations, barricaded subjects and other extremely hazardous situations; maintain contact with the public regarding potential law enforcement problems and preserve good relationships with the public; serve warrants and subpoenas; observe, monitor, direct, and control routine and unusual traffic conditions; check buildings for physical security; and administer first aid.