Alex says on dsj exchange:
Actually the shed in question has three inch square frames and one inch thick cladding - they dismantled part of the shed to get the rotovator out. It was locked with a very good padlock and a heavy duty hasp and staple - which they cut.Hope police catch the toe-rags and make them dig the allotments!
The rotovator was securely chained to the frame of the shed. They used crowbars and boltcutters as well as very considerable amounts of force. A total of sixteen sheds were broken into and tools removed to neat piles on the roadways, but they left these behind once they had my rotovator.
It is an import, and very uncommon in this country, so there is a (VERY) small chance it might turn up - made by craftsman and dark green in colour.