It might have had taceval aspects but IIRC you are talking about Brave Defender and 23 SAS was one of 2 Reserve units.
At Waddo I believe they had prior permission to modify the door into the Ops building which they did with a chain saw.
At Coningsby someone took out the window of the guardroom with a sledge hammer and a gorilla held his hand over the panic button until they opened the guardroom door with another chain saw.
They then broke in to the Police office where a home based WO was being held as a suspect. The SAS ordered everyone up against the wall. Our brave suspect protested he was one of them. He ended up with a broken arm and bloody nose as he hit the wall.
Their raid was countered though as the barrier guard ducked out of sight and rang the WOC which, in a hardened building, was impregnable.