Strict enforcement over the weekend has been promised by government officials in an effort to stamp out the dangerous but popular practice of wax-burning during Mid-Autumn Festival celebrations. The Housing Department will have 70 plainclothes officers and 200 uniformed security guards patrolling at all subsidised rental estates between tomorrow and Saturday. The Leisure and Cultural Services Department will also step up patrols at parks, public beaches and barbecue sites to combat the practice, which injured at least 12 people last year. The government has stepped up measures against wax-burning in recent years. The Housing Department made it one of the offences in a scheme that penalises public housing tenants for unhygienic or dangerous behaviour, with tenants caught burning wax having five points recorded in their family record. Tenants who accumulate 16 points face eviction. 'Wax-burning is a dangerous act which may cause a fire or severe burns,' said Assistant Housing Director Lee Cert-quinn, adding that children under 14 caught burning wax would not be exempted. He said the Housing Department would work with the Leisure and Cultural Services Department and the Food and Environmental Hygiene Department when cases of littering and wax-burning occurred at the boundaries of public housing estates. The Leisure and Cultural Services Department also said it would adopt a zero-tolerance approach against anyone caught littering and burning wax. About 1,000 staff from the department would be used to take enforcement action against offenders during the festival celebrations. The department has set up a hotline on 24145555 for complaints, starting from tomorrow at 7pm. The Housing Department's complaints hotline is 27122712. There were 12 reported cases of injury caused by wax-burning during the last Mid-Autumn Festival. The incidents involved 16 people.