Police dogs Zac and Marlowe get sniffy at Wimbledon

Albert Ramos of Spain serves to Juan Martin del Potro of Argentina in their men's singles tennis match at the Wimbledon Tennis Championships, in London June 25, 2013. REUTERS/Toby Melville

LONDON (Reuters) - Marlowe learnt his trade sniffing out tennis balls so he feels right at home prowling around the Wimbledon courts.

Zac is equally passionate about his job but the problem is people who keep trying to pet him when he is working.