Anti-bugging devices have been installed at Jockey Club premises after phone-taps were discovered at its Sha Tin complex last month. Security at Racecourse Gardens has also been stepped up and detectives from the Organised Crime and Triad Bureau are continuing to investigate the case. Bugs were discovered on the home phone lines of trainers and senior Jockey Club staff on March 11. The equipment, which the Jockey Club described as 'amateurish', is believed to have been installed in a junction box inside Racecourse Gardens, giving its operators access to multiple lines. A similar incident took place in the same block four years ago. A Hongkong Telecom spokesman said: 'We have conducted meetings with the Jockey Club and given them advice on how to improve security. 'We have suggested to them how to make sure telephone distribution points . . . inside Jockey Club premises have restricted entry.' She said some anti-bugging measures had been put in place and others were being considered for all Jockey Club premises.