9.15 Particular Rights-Fourth Amendment-Unreasonable Search-Exception to Warrant Requirement-Consent refers to an exception to the Fourth Amendment's general requirement that a warrant be obtained prior to conducting a search or seizure. This exception permits law enforcement officers to conduct a search or seizure without a warrant if the individual being searched or seized has given consent. There are two types of consent that may be given: express consent and implied consent. Express consent is when an individual verbally agrees to a search or seizure. Implied consent is when an individual's behavior or actions indicate that consent has been given, such as when an individual voluntarily allows law enforcement officers into their home.