Probable Cause——合理理由、合理根據(jù)

Before a judge will sign a search warrant （that will allow the police to search a premises or arrest a suspect）， the judge must have reliable information which states that a crime has been or is being committed and the suspect is involved. This information is termed as probable cause， based on which the judge will issue the warrant.
    【注】 所謂Probable Cause （合理根據(jù)）是指，根據(jù)執(zhí)法人員所了解的事實(shí)和情況或者所得到的可以合理信賴的信息，足以使一個(gè)正常而謹(jǐn)慎的人相信犯罪正在發(fā)生或者已經(jīng)發(fā)生。
    由于公民的人身、住所權(quán)利受憲法保護(hù)，逮捕的條件有嚴(yán)格限制。憲法第四條修正案要求除非具有“合理根據(jù)（ProbableCause）”，否則不得簽發(fā)逮捕令。