SAFETY laws for construction sites are inadequate and are being reviewed, Secretary for Works James Blake said yesterday. ''There are weaknesses in the existing regulations and there are weaknesses in management,'' he said. The Labour Department's chief factory inspector, Chan Tat-king, said his department was working closely with the Works Branch to overhaul the legislation. ''We are seeing what can be done. Part of this includes looking at safety regulations in Western countries,'' he said. Aspects of the new European Union directive on health and safety are being incorporated on airport core projects. The Government has insisted contractors working on airport contracts take responsibility for safety in addition to introducing better worker training. ''We are introducing a culture of safety for each and every individual and each and every organisation working [on the airport],'' Mr Blake said.