Can evidence be used against a person for a warrant that was not for them?

Yes, evidence obtained during the execution of a warrant that is not specifically for a person can sometimes be used against that individual if it is relevant to the case. However, the legality of using such evidence depends on several factors, including the circumstances of the search and whether it violated the person's Fourth Amendment rights. Courts may suppress evidence if it was obtained unlawfully or if the person had a reasonable expectation of privacy. Ultimately, the admissibility of the evidence will depend on the specifics of the case and applicable laws.