Do-it-yourself breathalyser machines have been installed in three car parks in Glasgow and a fourth in Leeds so motorists can find out if they are under the limit to drive. The Association of Chief Police Officers is not happy and has called the machines "a gimmick". A spokesman said people should not drink and drive at all. But Risk Shifters, who distribute the £5,000 machines, said they provide users with "helpful information". Charity Alcohol Concern is also in favour, saying they would encourage motorists to act responsibly. The Mail on Sunday 30/09/07 page 40