City of Adrian issued the following announcement on Sept. 12.
Tomorrow there will be a training exercise at the Lenawee County Judicial Building to train county employees, local emergency responders and Emergency Operations Center personnel in dealing with an active assailant situation. There will be a lot of activity, but please keep in mind it is a drill. The Judicial Building will be closed to the public. Winter Street between Maple and Hunt Streets will be closed.
Original source can be found here.
Source: City of Adrian