A statue of Thatcher in the Guildhall was vandalised in 2002 (Image: GETTY)
In 2002 a different statue of the former Prime Minister was decapitated by a protestor at London’s Guildhall.
The attacker used a cricket bat and metal bar to damage the monument.
Describing how he erected his model in Grantham, Mr Robla said: “There was no breaking and entering. It has a metal fence around it so I ve just gone in with my ladder and put it up in about five minutes.
“I had my high vis jacket on and the plan was to say I was measuring the plinth for the council if anyone said anything.