Public prosecution case

About 3 years ago i was stabbed by a pakistani national due to a fight, which got him arrested and the people with him, i got 4 stitches and was told that i would get justice. After some days he travelled out of saudi arabia and had a different case number. Whereas the other 3 people with him had a case id. Until now i have not received justice. I am looking for help and whether i can get any justice from the government