In all cases of homicide, any officer prosecuting for the State may, at any time, direct a postmortem examination of the deceased to be made by one or more physicians to be summoned for the purpose; and the physicians shall be paid a reasonable compensation for such examination, the amount to be determined by the court and taxed in the costs, and if not collected out of the defendant the same shall be paid by the State. (R.C., c. 35, s. 49; Code, s. 1214; Rev., s. 3152; C.S., s. 4518; 1973, c. 1141, s. 2.)