La. Consolidated Public Retirement § 11:3652
All members and employees of the House of Detention, seasonal employees of the New Orleans Police Department, maintenance repairmen, garage attendants, custodial workers, nurses, physicians, information officer, machine records supervisor, traffic control guards, school crossing guards, typists, clerks, key-punch operators, tabulating machine operators, stenographers, and any nonpolice grade except radio technicians now established by civil service are excluded from the benefits of this Subpart, and shall not be assessed the five percent of their salary, which is assessed against the officers, members and employees of the police department. Likewise, any officer, member or employee of the department who, because of the provisions of this Subpart, is deprived of the retirement benefits provided in this Subpart, may be excluded from the system at his option. In such case, no refund shall be paid to any such officer, member or employee for any contributions previously made, but he shall be relieved of any further obligations to make such contributions. The exclusions herein provided, shall apply to those members of the police department of the city of New Orleans, who shall be employed subsequent to July 27, 1960, but shall not apply to members presently employed from whom five percent of their salaries shall have been deducted and collected monthly and paid into the Police Pension Fund, as provided in Section 3636 of this Subpart.
La. Consolidated Public Retirement § 11:3652