This image is in the public domain because according to the Copyright Law of Montenegro ("Службени Лист ЦГ/Službeni list CG", бр. 61/2007), "Work is not copyrighted if the work is:

1. Law, sub-law act or other kind of law act.
2. Official materials of state authorities or materials published by any other person or institution which do public function.
3. Official translations of materials of state authorities or translation of materials published by any other person or institution which do public function.
4. Any of acts in judgment processes."
   

Hence it is assumed that this image has been released into public domain.