THREE security guards admitted in Kwun Tong Court yesterday to conspiring to accept bribes from the owners of three vehicles for allowing them to park in a public car park. Security guards Tsang Sang, 70, Chan Wan-kam, 60, and Ko Wing, 58, all pleaded guilty before Mr Crawford McKee to a joint count of conspiracy to accept an advantage as an agent. They admitted having accepted $30,000 in total from Mr Lam Yuk-shun, Mr Lau Kwai-sing and an unknown person as an inducement or reward for allowing them to park at Kai Yip Estate, Kowloon Bay, without paying the proper fees. In September 1989, Tsang, the supervisor, was approached by a frequent customer, Mr Lam, asking about monthly parking. Mr Lam agreed to pay $400 to Tsang. Tsang gave $100 each to Chan and Ko and kept the balance. The sum was raised in subsequent years. During a 30-month period Tsang received about $16,000 from Mr Lam. Tsang also had deals with two other vehicle owners, receiving a total of $14,000. The three men were granted bail at $10,000 and will be sentenced on April 29.