Briggs

However, Tory education spokesman Miles Briggs said they were a pathetic response to the epidemic of violence in Scottish classrooms.

He cited campaigning by Matthew Briggs, whose wife, Kim, died from head injuries after a collision with a cyclist in 2016.

Mr Briggs told the BBC that he felt his years of campaigning was on the "edge of a breakthrough", but that he would remain "cautiously optimistic" until the amendment became law.

Mr Briggs said Alexander had shown "enormous personal kindness" over the years, and "courage and commitment" in going up against a "strong" cycling lobby to push for the change.

A government source close to Transport Secretary Heidi Alexander told the BBC that changing the law "at the first opportunity" was "definitely personal" to her as she was Mr Briggs' MP when his wife was killed.