"On my way home from the tube a man approached me and tried to take my bag, remembering my new purchase, I pulled the chain on my Dusk and luckily he ran away....I dread to think what could have happened if I didn't have it!"
Jacqui Hames served for 25 years with the Metropolitan Police, and is one of Britain's best-known real-life detectives. She co-presented BBC's Crimewatch for 16 years, and regularly appears on Sky News, Five News, Radio 5 Live, and the former GMTV, to comment on news stories.