In 1957 he joined the 20th Harrow Scout Group as a Cub from the 19th Harrow. This was when his father, Eric, restarted the 20th Harrow Scout Group.
He became Assistant Cub Scout Leader in 1975, having worked through Scouts and Senior Scouts, and Scout Leader in April 1971. In 1976, for a short time, he was Venture Scout Leader. Following the death of his father, he became Group Scout Leader in November 1979.
He was awarded the Long Service Decoration for 15 years service in April 1990 and in 2001, when Dick Bong became Group Scout Leader, he became Assistant Group Scout Leader. He was made an Honorary Scouter in April 2002 on his retirement as a leader, and in January 2006 he was awarded the Chief Scout’s 25 year Service Award.
Peter continued to support the 20th Harrow after he moved to Greenford.