Chief Executive Donald Tsang Yam-kuen greets representatives from major trade unions at a Labour Day reception at City Hall (above) yesterday, where he promised the government would crack down on wage offenders. Unionist legislator Lee Cheuk-yan offered Mr Tsang advice on workers' rights, while Permanent Secretary for Economic Development and Labour Matthew Cheung Kin-chung listened in. Earlier, the Association for the Rights of Industrial Accident Victims held a memorial at Chater Garden in Central (left) to remember victims of work-related accidents. Outside City Hall, labour groups and workers demanded a law on a minimum wage and maximum working hours. The protesters, including legislator 'Long Hair' Leung Kwok-hung, accused the government of being the worst abuser of worker's rights through its outsourcing practices, which they say allow government subcontractors to exploit workers.