PART ONE
GENERAL PART
CHAPTER ONE
SCOPE OF THE ACT AND FOUNDATIONS OF CRIMINAL LIABILITY
Title One
Criminal Code and its Scope
Section 2
Applicability in Time
(1) The criminal liability for an act shall be determined and the punishment shall be imposed according to the law applicable at the time of its commission. When several new laws have taken effect between the time of commission of the act and the delivery of judgement, the criminal liability for an act shall be determined and the punishment shall be imposed according to the law, which is more favourable for the offender.
Nullum crimen sine lege
Nulla poena sine lege
EDIT.