A search of the apartment and other premises of a person suspected of having committed or participated in a criminal offence, as well as his person and belongings (including his vehicle) may be conducted both, for the purpose of arrest and in cases of possible preservation of evidence.
For other persons, searches are only permissible to arrest a suspect, to follow up on traces of of a crime or to seize certain objects, and only of the person or evidence is likely to be present in the premeises to be searched.
There are some restrictions in the German law for searches druing night time (9 p.m. to 6 a.m.).