Investigation against three members of an audit committee that worked in the shooting club of the later perpetrator has been discontinued. The guilt of the three accused should be viewed as minor, the public prosecutor's office said.

Legal and official deficiencies in the implementation of the expertise test required to obtain a firearms license were also important in the decision. On March 9, 2023, after a community meeting of Jehovah's Witnesses in Hamburg-Alsterdorf, Philipp F. killed seven people and ultimately himself with a semi-automatic pistol.