Patriot Act allows law enforcement officers to search a home without consent of owner.
Opponents of the law have criticized its authorization of indefinite detentions of immigrants ; the permission given law enforcement officers to search a home or business without the owner 's or the occupant 's consent or knowledge ; the expanded use of National Security Letters , which allows the Federal Bureau of Investigation -LRB- FBI -RRB- to search telephone , e-mail , and financial records without a court order ; and the expanded access of law enforcement agencies to business records , including library and financial records .	indefinite detentions	indefinite detention without trial	National Security Letters	National Security Letters	Federal Bureau of Investigation	Federal Bureau of Investigation
