For the purpose of this chapter, the following terms have the meanings given them.
"Financial institution" means any office of a bank, savings bank, industrial loan company, trust company, savings and loan, building and loan, credit union, or consumer finance institution, located in the state.
"Financial record" means an original of, a copy of, or information known to have been derived from, any record held by a financial institution pertaining to a customer's relationship with the financial institution.
"Government authority" means any agency or department of the state or a local unit of government, or any officer, employee, or agent of it.
"Customer" means any natural person or authorized representative of that person who utilized or is utilizing any service of a financial institution, or for whom a financial institution is acting or has acted as a fiduciary, in relation to an account maintained in the person's name.
"Law enforcement inquiry" means a lawful investigation or official proceeding inquiring into a violation of, or failure to comply with, any criminal or civil statute or any rule or order issued pursuant to it.