Which of the following actions would typically require a warrant?

Entering a private residence typically requires a warrant due to the strong constitutional protection of individuals' rights to privacy in their homes. The Fourth Amendment of the U.S. Constitution establishes the requirement for a warrant, which must be based on probable cause and specifically describe the place to be searched and the items sought. This protection reflects the principle that individuals have a reasonable expectation of privacy in their own homes, which includes safeguarding against unreasonable searches and seizures by law enforcement.

In contrast, searching a public park, patrolling public streets, and investigating a noise complaint generally do not require a warrant. Public spaces do not afford the same level of privacy expectations, and law enforcement officers have broader authority to conduct searches or investigations in those areas without a warrant, provided there is no specific suspicion of unlawful activity that would elevate the need for a warrant. Thus, the requirement of a warrant is critical in preserving the privacy rights associated with entering private residences.