A private hire vehicle is sometimes called a "minicab." Some of these are used for chauffeur or executive hire. Private hire vehicles cannot be hailed on the street or approached on foot at a taxi rank. They must be pre-booked through a company only.
All private hire drivers in the Chiltern area must wear clearly visible badges that include their photograph, name, badge number and expiry date. These badges are yellow in colour and must be produced on request by any customer, council officer or police officer. Private hire vehicles are required to display a yellow or gold Council licence plate at the back of the vehicle.