California Code, Penal Code - PEN § 1203.1h

(a) In addition to any other costs which a court is authorized to require a defendant to pay, upon conviction of any offense involving child abuse or neglect, the court may require that the defendant pay to a law enforcement agency incurring the cost, the cost of any medical examinations conducted on the victim in order to determine the nature or extent of the abuse or neglect. If the court determines that the defendant has the ability to pay all or part of the medical examination costs, the court may set the amount to be reimbursed and order the defendant to pay that sum to the law enforcement agency in the manner in which the court believes reasonable and compatible with the defendant's financial ability. In making a determination of whether a defendant has the ability to pay, the court shall take into account the amount of any fine imposed upon the defendant and any amount the defendant has been ordered to pay in restitution.

(b) In addition to any other costs that a court is authorized to require a defendant to pay, upon conviction of any offense involving sexual assault or attempted sexual assault, including child sexual abuse, the court may require that the defendant pay, to the law enforcement agency, county, or local governmental agency incurring the cost, the cost of any medical examinations conducted on the victim for the collection and preservation of evidence. If the court determines that the defendant has the ability to pay all or part of the cost of the medical examination, the court may set the amount to be reimbursed and order the defendant to pay that sum to the law enforcement agency, county, or local governmental agency, in the manner in which the court believes reasonable and compatible with the defendant's financial ability. In making the determination of whether a defendant has the ability to pay, the court shall take into account the amount of any fine imposed upon the defendant and any amount the defendant has been ordered to pay in restitution. In no event shall a court penalize an indigent defendant by imposing an additional period of imprisonment in lieu of payment.