Daniel Greenwood (left) allegedly told junior officer Caitlin Howarth to delete their intimate messages (Picture: Facebook) A married police chief has resigned after an affair with a rookie officer 17 years his junior. Chief Superintendent Daniel Greenwood, 41, a Bradford district commander, allegedly took advantage of his position by starting a relationship with student officer Caitlin Howarth, 24. Howarth was 21 during the the alleged fling wh…