In the U.S., the police are allowed to lie to suspects in order to get a confession. They are not allowed to search you or your property without probable cause

In the U.S., the police are allowed to lie to suspects in order to get a confession. They are not allowed to search you or your property without probable cause or a search warrant. If they do so, the evidence obtained (and all evidence stemming from the original evidence -- fruit of the poisonous tree) is not admissible.