A law to stop drivers using mobile phones will not come into force tomorrow as planned after legislators passed a motion delaying the move. Non-affiliated member Leong Che-hung, chairman of the House Committee and representing the medical sector, said most legislators supported the regulation to improve safety on the roads. But the regulation was not clear enough, he said, so they preferred deferring the move to allow more discussion. Dr Leung said it was not clear in which situation a driver could not use a mobile phone, and members needed more time to air their concerns. The Government will answer technical questions from lawmakers at a subcommittee meeting on April 7. The Transport Bureau announced in early February that drivers caught using mobile phones should be fined up to $2,000. Drivers could use hands-free devices under the law and a year's grace period would be granted to workers such as lorry drivers.