An Act amending the act of July 18, 1935 (P. L. 1314, No. 411 1/2), entitled, as amended, "An act authorizing the utilization of the Pennsylvania State Police Academy for training persons to act as policemen in the political subdivisions of the Commonwealth; prescribing the qualifications for admission of such persons to such school; providing for the payment of certain costs by such students; conferring certain powers upon the Pennsylvania State Police; and making an appropriation," requiring the Pennsylvania State Police to establish a missing persons unit.