Ala. Code § 2-6-124
The state and all public officers, municipal corporations, political subdivisions and public bodies, all banks, bankers, trust companies, savings banks and institutions, building and loan associations, savings and loan associations, investment companies, and other persons carrying on a banking business, all insurance companies, insurance associations and other persons carrying on an insurance business and all executors, administrators, guardians, trustees, and other fiduciaries may legally invest any sinking funds, moneys, or other funds belonging to them or within their control in any bonds of the corporation, and the bonds shall be authorized security for all public deposits, it being the purpose of this article to authorize any persons, firms, corporations, associations, political subdivisions, bodies and officers, public or private, to use any funds owned or controlled by them, including, but not limited to, sinking, insurance, investment, retirement, compensation, pension and trust funds, and funds held on deposit, for the purchase of any such bonds, and that any such bonds shall be authorized security for all public deposits. However, nothing contained in this article with regard to legal investments shall be construed as relieving any person, firm, or corporation from any duty of exercising reasonable care in selecting securities.
Ala. Code § 2-6-124 (1975)