General Part
FIRST SECTION
Main Provisions
Chapter I
Legislation on criminal procedure
Article 4. Temporal scope of legislation on criminal procedure
4.3. During the trial, evidence shall be ruled admissible in accordance with the provisions of the legislation on criminal procedure of the Azerbaijan Republic which is in force at the time. If newly adopted provisions of the legislation on criminal procedure of the Azerbaijan Republic substantially change the conditions under which evidence is ruled admissible, evidence which is not in accordance with the new provisions may not be used in support of the charge.
Admissibility of evidence - national proceedings
EDIT.