Book Two : Specific Provisions
Title Twelveter : War Crimes
Art. 264c
1 The penalty is a custodial sentence of not less than five years for any person who commits a serious violation of the Geneva Conventions of 12 August 1949 in connection with an international armed conflict by carrying out any of the following acts against persons or property protected under the Conventions :
g. denying the right to a fair and regular trial before the imposition or execution of a severe penalty.
Wilfully depriving a prisoner of war of the rights of fair and regular trial - IAC
Wilfully depriving a protected person of the rights of fair and regular trial - IAC
EDIT.