Pc Terry, a father of two from Burnley, Lancashire, was shot as the unit practised in a disused factory in Newton Heath on June 9 2008.
An inquest held at Manchester Coroner's Court in March 2010 found Pc Terry was unlawfully killed.
More top news
Very mixed weekend - best day Saturday - windiest and wettest on Monday
This is the unbelievable moment a pedestrian in Manchester, comes inches from being mown down by a biker.
A retired officer from South Yorkshire police says he doesn't accept inquest verdicts.