A POLICEMAN was yesterday arrested in connection with the kidnap of a 27-year-old woman, who was released after her family paid a $50,000 ransom. Four other people were last night released on $2,000 bail each. They were ordered to report back on Friday. The victim, who works in an entertainment agency, was found at the side of Tai Po Road near St Christopher's Home at about 7.40 am. She was not injured. Forty minutes earlier, her family, who live in Fo Tan, left an envelope containing cash on the road near the Wo Che Estate bus terminus in Sha Tin. The 29-year-old policeman, who is also a part-time taxi driver, and four others were rounded up in raids on two homes in Sha Tin and Yuen Long between 8 am and 1 pm. Detectives are looking for several other people they believe were involved in the kidnap. Police sources said the victim had been terrorised for more than 30 hours. She had been stuffed into the boot of a taxi and driven to a hut in San Tin, where she was robbed of her bank cash card; $9,000 was later withdrawn from her account. She was later taken to a Wo Che Estate flat in Sha Tin. The victim had taken a taxi at Sha Tin railway station at about midnight on Sunday after returning by train from a night out on Hong Kong Island. After she had told the driver she wanted to go to her Lok Fung Path home in Fo Tan, the suspect pulled out a knife and threatened her. The woman was blindfolded, gagged, pushed into the boot and driven to the hut. One of her elder brothers, who works in the Admiralty office of the Architectural Services Department, received a telephone call at about 3.30 pm on Monday from a man demanding a $300,000 ransom. The victim also has a brother who works as a doctor for the Hospital Authority. A police source said the ransom was finally reduced to $50,000 and arrangements were made to put the money on the road in Wo Che.