Section 47 Prima facie evidence of violation of statute

Section 47. If such steam engine or boiler or an appurtenance thereof is found to be in charge of, or operated by, a person not duly licensed as an engineer or fireman, and, after a lapse of one week from such time, it is again found to be so operated by an unlicensed person, it shall be deemed prima facie evidence of a violation of the preceding section.