Power to impose a fine in lieu of imprisonment

Were a person is convicted of any summary conviction offence for which the court, under any Act or other enactment for the time being in force, has authority to impose imprisonment and has not authority to impose a fine, the court, notwithstanding the provisions of any such Act or other enactment, may, if it thinks that the justice of the case will be better met by a fine than by imprisonment, impose on the offender a fine not exceeding two hundred and fifty dollars, and not being of such amount as will, under the provisions of this Act, subject the offender in default of payment of the fine to any greater term of imprisonment than that to which he is liable under the Act or other enactment authorising the imprisonment as aforesaid. non- payment of