MINNEAPOLIS — A Minnesota prosecutor has asked a state agency to expand its investigation into the November fatal shooting of a black man by Minneapolis police.

Hennepin County Attorney Mike Freeman said Tuesday his office has discovered “that a number of things were not completed,” so the case was returned to the Minnesota Bureau of Criminal Apprehension. He would not elaborate.

Twenty-four-year-old Jamar Clark was shot by a Minneapolis officer on Nov. 15 during what authorities said was a struggle. Some who said they saw the shooting have said that Clark wasn’t struggling and was handcuffed. The shooting sparked weeks of demonstrations.

Freeman said he hopes to have a decision by the end of March on whether or not the officers will be charged.