121Effect of alterations in penalties

121 Effect of alterations in penalties (1) Where an Act, including this Act, or an instrument of a legislative or administrative character increases the penalty or the maximum or minimum penalty for an offence, the increase applies only to an offence committed after the commencement of the provision effecting the increase. (2) Where an Act, including this Act, or an instrument of a legislative or administrative character reduces the penalty or the maximum or minimum penalty for an offence, the reduction extends to an offence committed before the commencement of the provision Sentencing Act 1995 96 effecting the reduction for which no penalty had been imposed at that commencement.