A peace officer may arrest an offender without a warrant for any offense committed in his presence or within his view. If officers do not receive a response within 5 to 10 minutes, the officer or the Communication Unit may call.207-7718 to verify the warrant. 2. There are times when officers may not need probable cause to make an arrest. Bexar County has a jail roster that is updated daily. If there is no warrant or probable cause, anything they find can not be used against you in a criminal proceeding. It is an exception to the warrant requirement. If a person gives police permission to search, then police can search without either a warrant or probable cause. This means that cops can't search for evidence on your person or in your car without probable cause unless an exception applies. Police must be able to convince the judge that they have probable cause before being granted the warrant.