本檔案處於公有領域，因為it's a public record created by the Cambridge Massachusetts Police Dept., and, by Massachusetts law, local governmental records are in the public domain. See (1) "Records created by Massachusetts government are not copyrighted and are available for public use" ( http://www.sec.state.ma.us/ARC/arcres/residx.htm ) (2) Guide to the Massachusetts Public Records Law: "The Massachusetts Public Records Law applies to records created by or in the custody of a state or local agency, board or other government entity" [p. 1]; "These records include minutes of local board meetings, town meeting documents, warrants, street lists, municipal financial documents, etc." [p.3] ( http://www.sec.state.ma.us/pre/prepdf/guide.pdf ).