Generally no, unless the police have a signed search warrant. In most circumstances, you can refuse to consent to a search by the police without a search warrant. Even if the officer threatens to hold you until a search warrant is obtained, it is seldom a good idea to willingly consent to a search. However, there are circumstances in which the police may search your home or car without a warrant. They are: exigent circumstances, arrest in a vehicle (cannot search locked compartments without probable cause), plain view, or consent. If your rights against an unlawful search were violated in any way, a knowledgeable Murfreesboro criminal defense attorney may be able to have any evidence found in the unlawful search thrown out.