Defense council : Absent exigency circumanstances, the police can not search without a warrant.

辩护律师： 在没有紧急情况， 警察无搜查令不得进行搜查。

youdao

Generally a policeman is not entitled to arrest someone without a warrant if the person do not know or be not tell the reason for his arrest.

一般说来，警察在没有逮捕令的情况下无权拘捕一个人，如果那个被捕的人不知道或没被告知为什么要逮捕他理由的话。

youdao

Otherwise, you would respect their legal rights, and do not search them without a warrant.

否则，你们会尊重他们的合法权力，不会没有搜查证就搜查他们。

youdao

Canadian Muslims should not cooperate with authorities without a warrant or without presence of legal counsel, the group said.

CENTERFORSECURITYPOLICY: Center for Security Policy | Group urges Muslims in Canada not to cooperate with authorities on al Qaeda probe

The intended legislation requires "communications service providers" (ISPs and email providers) to install "Deep Packet Inspection" (DPI) technology hardware which would give GCHQ the ability, without a warrant, to monitor and intercept the times, dates, frequency and addresses (but not the actual content) of our online calls, emails and instant-messaging communications.

CNN: Opinion: In the digital age, everyone is becoming a spook