La. Consolidated Public Retirement § 11:3320
The said board of directors may, at any time, after considering the probable current demands upon such fund, determine what portion of said fund may be safely withdrawn from the current cash account for investment for revenue purposes, and having so determined, invest the same in the manner hereinafter authorized. Such investment shall be only in interest bearing bonds of the United States of America, or of the State of Louisiana, or of the said City of Lake Charles. All income from such investments shall be and become a part of the said Firemen's Pension and Relief Fund. All such securities shall be deposited with the fiscal agent of the City of Lake Charles and its receipt therefor filed with the Secretary.
La. Consolidated Public Retirement § 11:3320