The ability to search telephone records without court order will be granted to the FBI from the Patriot Act.
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
