Single punishment principle allows prosecution under any applicable enactment but prevents being punished twice for the same offence. Where a single act or omission constitutes offences under multiple enactments, the offender may be prosecuted and punished under any one or more of those enactments, but shall not be subjected to double punishment for the same offence; the provision establishes a single punishment principle for concurrent statutory offences while permitting prosecutorial election of charging enactments.