Counsel shall also be entitled to be reimbursed for any nonoverhead expenses reasonably incurred in the representation of his or her client, with any expense in excess of three hundred dollars ($300) subject to advance approval by the trial court as necessary for the indigent defense services and as a reasonable cost or expense. Reimbursable expenses shall not include overhead expenses. Fees and expenses of all experts, investigators, and others rendering indigent defense services to be used by counsel for an indigent defendant shall be approved in advance by the trial court as necessary for the indigent defense services and as a reasonable cost or expense. Retrials of any case shall be considered a new case for billing purposes. Upon review, the director may authorize interim payment of the attorney fees or expenses, or both.
Ala. Code § 15-12-21 (1975)