GENERAL PART
CHAPTER TWO
APPLICATION OF CRIMINAL LEGISLATION OF THE REPUBLIC OF SERBIA
Temporal Application
Article 5
(1) The law in force at the time of committing of criminal offence shall apply to the offender.
(2) If after the commission of a criminal offence, the law was amended once or more times, the law most lenient for the offender shall apply.
(3) A person who commits an offence prescribed by a law with a definite period of application shall be tried under such law, regardless of the time of trial, unless otherwise provided by such law.
EDIT.