Section 15. And be it further enacted by the authority aforesaid, That it shall and may be lawful for the said mayor, recorder and aldermen, before whom any complaint, indictment, plea, matter or thing of a criminal or civil nature within his or their jurisdiction, shall be made or depending, to issue their subpoena, in common form, to any person or persons within this commonwealth, commanding him or them to appear and give evidence therein, and every person to whom the same shall be directed, and on whom service thereof shall be duly made, shall attend accordingly and give evidence, under such pains and penalties as are by law incurred by any person or persons refusing to attend and give evidence when duly subpoenaed for that purpose.