Section 13. Whoever maintains a clinical laboratory in the commonwealth without a license in violation of section four or whoever, being licensed under section five maintains a clinical laboratory in violation of the terms of such license, or whoever engages in, aids, abets, causes or permits any act prohibited under section eight shall be punished by imprisonment for not more than five years in state prison, or by imprisonment in a jail or house of correction for not more than two and one-half years or by a fine of not more than ten thousand dollars, or both such fine and imprisonment. The commissioner shall transmit to the attorney general such evidence of an offense as the department may have in its possession.