Demonstrate a critical thought process about below: Police officers can sidestep the warrant requirement if they have probable cause to believe either that a suspect has committed a violent crime or that they or others in the community are in immediate danger. So officers could enter and search a house in a residential area because they reasonably believed guns and bombs were in the house (U.S. v. Lindsey 1989). It was also reasonable to enter a house without a warrant to search for a weapon when police found a dead body on the front porch (U.S. v. Doe 1985). Other dangers to the public include fires and explosions. Police officers at the scene of a fire don't need a warrant to stay inside a burned building long enough to look for possible injured victims and to investigate the cause of the fire or explosion. But once they determine the cause of the fire, officers have to get a warrant if they want to search for evidence of a crime (Michigan v. Clifford 1984). Furthermore, they can't enter just because a fire or explosion might be in the offing. For example, a court ruled that it wasn't reasonable for officers to enter a house where they knew a man had kept dangerous chemicals in his house for two weeks and wasn't at home (U.S. v. Warner 1988).