A Hong Kong woman who visited Beijing to lodge complaints to the central government offices against the demolition of her parents' home in Shanghai claims she was beaten up, intimidated, and had her travel and identity documents confiscated by plain clothes officers from Shanghai. Shen Ting, a Hong Kong permanent resident, claimed her backpack was snatched by two men at 11.45am yesterday when she was walking near Liuli Bridge. The backpack contained her Hong Kong identity card, home return certificate, her flight ticket, bank card, a digital camera, and HK$600. Ms Shen, a 37-year-old Shanghai native who migrated to Hong Kong in 1995, said she believed her bag was snatched by Shanghai public security officers to prevent her from protesting in Hong Kong during the visit of Shanghai mayor Han Zheng today. She bought a ticket for a Shenzhen airline flight at 4.30pm yesterday and planned to return to Hong Kong to protest to Mr Han, she said. Ms Shen arrived in Beijing on October 8 to submit petitions to the Central Commission for Discipline Inspection, the party's anti-graft body; the State Petition Bureau and the Ministry of Construction. Her parents' 50 square metre apartment was demolished by a property company owned by disgraced Shanghai tycoon Chau Ching Ngai without compensation. Ms Shen first lodged complaints to these departments during a previous visit to Beijing in June. She said officials told her to wait for news in Shanghai. She later wrote a public letter to the state leaders - released by overseas websites - pleading for help ahead of a planned protest in Beijing during a plenary session of the Communist Party's Central Committee this month by 85 petitioners against the demolition of their homes. The petitioners were stopped from leaving Shanghai and some were reportedly arrested, according to earlier reports by human rights groups. During Ms Shen's latest visit to Beijing she claims to have been tailed. On October 19, she said, a man and a woman entered her room in a small guesthouse at 6pm and beat her up. When they were at the front desk, these two people had identified themselves as Shanghai public security officers and said they were carrying out their duty, she said. Ms Shen said she called the Beijing police and was sent to a hospital for checkup. She said she sought help from the Hong Kong government office in Beijing but was told it was not their job to solve such a problem.