Patriot Act allows police officers to search a home without consent of owner .
Opponents of the Patriot Act have criticized its authorization of indefinite detentions of immigrants ; the permission given to law enforcement officers to search a home or business with the owner 's or the occupant 's consent or knowledge ; the expanded use of National Security Letters , which allows the Federal Bureau of Investigation , FBI , 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 .
Patriot Act