Any non-consensual search without a warrant is presumptively unreasonable and illegal under the Fourth Amendment to the U.S. Constitution. However, there are many exceptions to this general rule, mostly related to an exigency or emergency that requires an immediate search to prevent a greater harm or the destruction of evidence. In the case of a cell phone, once the police arrest the suspect and wait an hour, can the police then claim an exception to the Fourth Amendment and conduct a warrantless search of the suspect’s cell phone? If so, on what grounds? Click on the following link to find out answers.