manned by one or two officers, normally only during office hours. Territorial The State Police wear the state patch on the uniform sleeve and sometimes metal city badges are worn over the right breast pocket, indicating which police department they work for. Police officers can be transferred anywhere within their state. Once skilled, officers of the state police can be moved theoretically nationwide. In practice, such requests are made by the officers themselves. They usually swap workplaces with an exchange partner from another federal state ('Stellentausch', job rotation). Such an exchange is thus possible nationwide and is not dependent on the state. Operational State police forces are divided into the following branches: Schutzpolizei ("Schupo") - the uniformed police officers who patrol the streets and respond to emergency calls etc. Bereitschaftspolizei (BePo) - Uniformed units of the LaPo or Federal Police that provide additional manpower for the Schupo in cases of natural disasters, sporting events, traffic control or demonstrations. In 1950 the Bepo was founded as a paramilitary police force whose main task today is riot/crowd control. In some states the police academy is still part of the Bepo. After qualifying as a police officer, officers have to serve one to two years with the Bepo before moving on to law enforcement duties at a police station. Verkehrspolizei - The traffic police in Germany. Autobahnpolizei - The highway patrol in Germany. In some states the Autobahnpolizei is a sub division of the Verkehrspolizei department. Wasserschutzpolizei (WSP) - The river police for patrolling rivers, lakes and harbours. For practical reasons the WSP of one state may be in charge for territory of another state (e.g., in Hamburg, the WSP is in charge for the Elbe River in the states of Mecklenburg-Vorpommern, Lower Saxony, Schleswig-Holstein and Hamburg.) Wachpolizei ("Wapo") - Officers protecting buildings, embassies or pretrial suspects. Kriminalpolizei ("Kripo") - the detective branch, responsible for most investigations. For instance, if a car is broken into, the Schupo will respond, secure the car, notify the owner etc., and then hand the case over to Kripo for investigation. Landeskriminalamt (LKA) - State Investigation Bureau supervises police operations aimed at preventing and investigating criminal offences, and coordinates investigations involving more than one Präsidium. Some crimes are exclusive LKA missions such as crimes against the constitution, organized crime, youth gangs or political motivated crime. Dedicated to the LKA: Spezialeinsatzkommando (SEK) - The police tactical units of the