15.This section provides that a person who is neither a UK national nor a UK resident at the time when he or she commits an offence under Part 1 of the Act, or an offence which is ancillary to an offence under that Part, outwith the UK, may be prosecuted for that offence in Scotland if he or she subsequently becomes a UK resident. Proceedings may be brought against the person only where the offence is committed after the Act comes into effect.