Penny Lancaster participated in a passing out parade with the City of London Police yesterday, which marked the official completion of her special constabulary training.
The former model, 51 - who joined the force last year - received a certificate at the ceremony and marched in a procession alongside some of her colleagues in the capital.
Her husband Sir Rod Stewart, 77, is understood to have supported Penny at the event, alongside family and friends of the other recruits who were in attendance too.