The commissioner may cause to be issued, to any person whose earning capacity is impaired by age or physical or mental deficiency or injury, a special license authorizing employment at such wages less than the minimum fair wage and for such period of time as is fixed by the commissioner and stated in the license.
Conn. Gen. Stat. § 31-67
(1949 Rev., S. 3790; 1957, P.A. 435, S. 4.)