Almost exactly 60 years ago, the British government – a Labour one, as it happens – announced that it was introducing a blood alcohol limit for drivers.
Although driving “under the influence of drink or a drug to such an extent as to be incapable of having proper control of the vehicle”, which is pretty lax, had been unlawful for some decades, the bar had to be raised (pun intended) because of the rising numbers of booze-related incidents.