Figen Murray began her walk from the Manchester Arena, Figen has campaigned for the legislation, known as Martyn’s Law, since her son Martyn Hett was killed in the bombing in 2017.

There have been “forty near misses” since 2017 where planned terror attacks were foiled, “sooner or later one of those won’t be stopped, and families will suffer in the way we suffered.”

“We cannot wait any longer” for Martyn’s Law” Ms Murray said, the changes which will require counter-terrorism action plans, risk assessments and staff training at venue, were “very important” for public safety.

Ms Murray said “almost five years on from their first commitment, the draft legislation still hasn’t been tabled”, she also said she believed the delay was “putting our country at risk.”

“No parent should have to experience the pain and loss I’ve felt,” she said, “I truly believe we have an opportunity to make public spaces safer and more secure by introducing Martyn’s Law.”

Figen plans to visit the sites of terror attacks including The Glade of Light in Manchester, and the 7/7 Memorial in London, before arriving in London on 22 May, the seventh anniversary of the Manchester Arena terror attack.