A protest campaign, triggered by a social worker's complaint about alleged political interference in his work by the home affairs minister, has escalated. Twenty-nine groups have united to fight for an overhaul of the social-welfare system and the scrapping of the government's lump-sum subsidy system for welfare groups. The Anti 'False Harmony' Alliance was set up yesterday in support of Eddie Tse Sai-kit, who formerly worked at the Tai O office of the Young Women's Christian Association. In a complaint he filed with the Legislative Council's complaints division in April, Mr Tse said his then-employer's decision to move him to a Hong Kong Island office was the result of pressure from Secretary for Home Affairs Tsang Tak-sing, who had asked the YWCA to help promote 'social harmony'. The alliance comprises social-service organisations, Tai O residents' groups and tenants' groups, and individuals affected by urban- renewal projects who are unhappy with government policies. Tam Chun-yin, who represents the Confederation of Trade Unions in the alliance, said: 'The lump-sum grant system is the root of the problem. Social-service organisations have to compete for resources, and therefore dare not offend the government.' The alliance is demanding a comprehensive review of the city's social-welfare policies and the abolition of the lump-sum system - introduced in 2001 - under which welfare groups determine their manpower levels, salaries and how the funds they receive are to be used. It also called for an independent investigation into Mr Tse's case and urged Mr Tsang to apologise. The alliance will submit a petition letter to the YWCA tomorrow and stage a march on September 20 to protest against the Home Affairs Bureau. The minister, who has repeatedly denied the social worker's accusation, will attend a Legco meeting to discuss the matter next month. A spokeswoman for the Home Affairs Bureau said it had no additional comment to make. Wong Keung-sang, director of the Hong Kong Social Workers' General Union, said it had received two more cases similar to Mr Tse's since issuing a call for reports from social workers. Mr Tse said he hoped the establishment of the alliance would encourage more social workers to speak out on any unfairness they saw in the profession. Last year, he organised residents' gatherings in Tai O, during which he criticised the government's handling of severe flooding caused by two storms.