Dustin Diamond — Police Request Alleged Stabbing Footage … But It’s Shaky

EXCLUSIVE

Police in Wisconsin are on the hunt for video that would prove “Saved By the Bell” star Dustin Diamond stabbed someone … starting with surveillance footage from the scene of the crime.

Grand Avenue Inn title-holder Randy Buser tells us he was contacted Friday evening by authorities looking to review the bar’s video footage … and they agreed to meet today.

Law enforcement officials tell us they requested the video to see if Screech was the stabber … and to figure out what everyone’s involvement in the brawl was.

But, the bar title-holder tells us the cops should lower their expectations — he says his surveillance footage is very jumpy. 

Diamond’s still in jail … waiting for someone to post his $ 10,000 bail.