21-year-old Sophia Adams, a trainee officer in the Met, entered the Star in a Bra competition for Curvy Kate, a lingerie firm specialising in D-K cup bras, knickers and swimwear.
She aimed to become the face of the plus-sized lingerie firm.
According to AsianTown, the firm does not use professional models and picks women to model their lingerie by running a Star in a Bra competition, with the winner handed a one-year modelling deal.
Miss Adams, 21, fought off challenges from 1,000 women from all over the world to get down to the last 10 in the competition.
Voting for the winner begins next month, but Miss Adams, who has a 32JJ bust, is already causing a 'sensation' with the boys in blue.