The Fourth Amendment expressly prohibits police officers from making warrantless searches and seizures, especially in the privacy of the civilian’s home. The process of search and seizure is mandated by law. This procedure is performed by police officers to gather evidence that are relevant to a particular crime. Any search and seizure activity pursued by the police must have a warrant, usually issued by a judge.
This right against unreasonable searches and seizures is just one of the checks and balances to ensure that the public is protected from possible human right abuses that might result from them. Any evidence obtained from an unlawful search will not be admitted by court, regardless of its importance and materiality to the case. That is why it is absolutely important that any search and seizure is done with proper authorization to protect any possible evidence that may be obtained from it.