R.D. Wingfield, who is married with one son and lives in Basildon, Essex, is a prolific writer of radio crime plays and comedy scripts, some for the late Kenneth Williams, star of the Carry On films. His crime novels featuring DI Jack Frost are A Touch of Frost, Frost at Christmas, Hard Frost, Night Frost and Winter Frost. The series has been successfully adapted for television as A Touch of Frost starring David Jason.