Answer:
The Grϋne Polize and Gestapo often offered incentives or bribes to the German public for giving up the locations of Jewish members of the community. This most notably was the case with Anne Franks.
The police were divided into the Ordnungspolizei (Orpo or regular police and nicknamed the Grϋne Polize) and the Sicherheitspolizei (SiPo or security police), which had been established in June 1936. The Orpo assumed duties of regular uniformed law enforcement while the SiPo consisted of the secret state police (Geheime Staatspolizei or Gestapo) and criminal investigation police (Kriminalpolizei or Kripo). It was the Gestapo who were mainly involve with the detection of hidden Jews.