The state "Bereitschaftspolizei" units are part of the "Landespolizei" (state police) and are available for crowd control, (large) demonstrations, sport events and to assist the "Schutzpolizei" when needed. Aside from their primary functions, in some states they also train police recruits who serve about three years in combined training and service in these police support units. The units of one federal state can be deployed to assist the police of another state in case of riots, civil disturbances as well as catastrophes. Their day-to-day duties vary by locality.