The Portland Police Bureau (PPB), officially the Portland Bureau of Police, is the law enforcement agency of the city of Portland, the largest city in the U.S. state of Oregon. While oversight of Portland's bureaus shifts among the five City Commissioners, the mayor has historically been assigned to the Police Bureau as the police commissioner. Services The Bureau is the largest city law enforcement agency in Oregon. As of January 2023, the Bureau has around 800 sworn members, 35 cadets, and over 300 professional staff. Precincts The Portland Police Bureau divides Portland into three precincts, with each precinct divided into as many as 20 districts. The divisions are generally based on neighborhood association boundaries, but also take into account the number of police calls generated in each district. The district serves as the basic unit of territory within the bureau, and most districts are assigned between one and two patrol officers. As such, busier districts are geographically smaller and slower districts are larger. The infrastructure of each precinct is essentially the same, though the number of officers in each precinct is adjusted continually through transfers, new hires and attrition. Ranks Equipment Vehicles The PPB primarily uses Ford Explorers for their marked vehicles. Older marked vehicles that are still in use include the Ford Crown Victoria, and the Chevrolet Tahoe. Traffic officers use BMW R1200RT motorcycles. Firearms All Portland police officers are armed with a 9mm Glock handgun, either the Glock 17, the Glock 19. Plainclothes officers carry a Glock 26. Most uniformed officers' handguns are equipped with SureFire or Streamlight tactical lights. Officers often carry a backup firearm that must conform to regulations regarding caliber and type. All Portland Police Bureau officers are authorized to carry a Remington 870 shotgun (fitted with a tactical flashlight in the foregrip). After completion of bureau courses, officers are also authorized to carry Colt AR-15 rifles and FN 40mm single shot less-lethal launchers. Special Emergency Reaction Team (SERT) officers are armed with a variety of additional weapons, including H&K MP5A3 submachine guns, and M4A1 rifles with EOTech holographic sights. The .45 Glock 21 was once included in the list of handguns that could be used as a service pistol. However, after two incidents in which Glock 21s exploded in the hands of officers at a shooting range, the Bureau abandoned the Glock 21. Non-lethal Weapons All uniformed officers carry pepper spray, the ASP expandable