What are the rules of the Fourth Amendment in criminal cases?

The Fourth Amendment of the United States Constitution protects individuals from unlawful searches and seizures by prohibiting unreasonable searches and seizures. In California, this includes a prohibition on law enforcement officers from conducting searches without a warrant or probable cause. The rules of the Fourth Amendment in criminal cases in California provide protections to individuals who have been arrested. One of the main rules is that a law enforcement officer may only search someone after he or she has been arrested, and only if the officer has probable cause to do so. If a law enforcement officer does not have a warrant or probable cause, then any evidence obtained through the search cannot be used against the individual in the criminal court. In addition, the Fourth Amendment also provides that law enforcement officers must inform those being arrested of their Miranda rights, which states that individuals cannot be forced to provide self-incriminating statements. This means that anything that an individual says during the course of an arrest can not be used against them in criminal proceedings. Lastly, the Fourth Amendment also prohibits law enforcement from engaging in excessive force during an arrest. This means that officers cannot use more force than is necessary to subdue someone who is being arrested and must use methods that are proportional to the situation. Any law enforcement officers who are found to have violated these rules can be held liable for damages.

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