Which statement about the Fourth Amendment is true?

The Fourth Amendment of the United States Constitution is designed to protect individuals against unreasonable searches and seizures by the government. It establishes the principle that law enforcement must have probable cause and, in most circumstances, obtain a warrant before conducting searches. By placing these restrictions on police powers, it ensures a balance between individual rights and the interests of public safety. This amendment plays a crucial role in safeguarding personal privacy and maintaining a limit on government authority.

In contrast, the other statements do not accurately reflect the purpose or implications of the Fourth Amendment. It does not permit unrestricted police actions, nor does it eliminate the requirement for search warrants. Additionally, the Fourth Amendment does not specify any time constraints, such as applying only during nighttime; rather, it is applicable at all times when considering searches and seizures.