A police log is an entry of various activities that the police carry out in an area. The police usually update the log on a daily basis. The purpose of the log is to provide a clear report regarding daily criminal activities, as the City of Boulder, Colorado reports.
The police use logs to summarize criminal incidents and responses that take place in their jurisdictions. The police provide them as a resource for the public, although they are not always updated regularly. Information is occasionally omitted to prevent suspects from knowing that they are being watched, notes the City of Boulder.