Police
Branches of the police force include the general police force, the criminal police, the emergency police force and the water police. Their duties range from averting dangers to prosecuting crime. Whereas the general police force is mainly concerned with petty crime and minor offenses, the criminal police deal with serious crimes and criminal offenses. In the prosecution of crime, the police are subordinate to the public prosecutor's office in charge of the relevant proceedings. The police have special units, which are deployed mainly in the case of hostage-taking, for protection purposes during special events, and for observation and searches.
Every state maintains organizationally separate emergency police force units within its police force. These are supplied with the necessary control structures and operational equipment by the Federal government.
The emergency police forces are responsible for dealing with exceptional circumstances including dangerous situations in the case of natural disasters or accidents that endanger the territory of more than one state. (art. 35 para. 3, 91 para. 2 of the Basic Law), for assisting other states in dealing with exceptional circumstances including the above-mentioned dangerous situations, as well as for assisting with individual police duties.
The state emergency police forces were fundamentally reformed between 1993 and 1997. They currently number 15,871 law enforcement officers.
http://www.tatsachen-ueber-deutschland.de/698.0.html
http://www.interpol.int/Public/Region/Europe/pjsystems/Germany.asp