Nevada law requires police to obtain a search warrant before searching your home, vehicle or person, unless an exception to the warrant requirement exists. What Does the Fourth Amendment Mean?While search warrants are generally required for searches, there are situations in which law enforcement can conduct searches without a warrant. You should never give consent to allowing law enforcement to search your vehicle, home, or person. If the officer feels he has probable cause or an actual warrant, yes, he can search your car in Nevada without your permission. The court then set out a three-part test that must be satisfied in order to ensure that warrantless searches of closely regulated businesses remain reasonable. Police do not require a warrant to search a person following a lawful arrest. There is no general exception to the Fourth Amendment warrant requirement in national security cases. Without a warrant, you have to give your consent to a search. You can see search and seizure details for all 50 states below in detail below.