True. In the context of U.S. law and similar legal systems, police officers may not require a search warrant when they believe emergency circumstances exist—also known as "exigent circumstances." This principle allows officers to enter a property without a warrant when they have a reasonable belief that waiting to obtain a warrant would either pose a significant danger to life, allow a suspect to escape, or lead to the destruction of evidence. Examples of exigent circumstances include hearing screams from inside a residence, smelling smoke, or pursuing a fleeing suspect. However, the specific conditions that qualify as exigent circumstances can vary and are subject to interpretation by courts.
