Merseyside Police said it is committing to removing the scourge of drink driving from St Helens roads after figures showed the number of arrests is falling.
A total of 161 drivers were arrested in the borough in 2014-15, compared to 175 in 2013-14 and 210 in 2012-13.
The plummeting rate of drink driving was revealed through the Freedom of Information Act (FOI).
The figures refer to motorists arrested by the police for driving a motor vehicle while over the legal alcohol limit or while unfit through drink.
The FOI data only counts primary arrests and does not include re-arrests, and could also involve individual offenders being counted more than once if they have committed the same offences on multiple occasions.
Merseyside Police said drink driving posed a serious safety risk to other road users and had a simple message for anyone considering getting behind the wheel while over the limit.
Sergeant Paul Mountford of the force’s roads policing unit said: “Merseyside Police is committed to tackling drink and drug driving throughout the year, and across the force.
“Any driver involved in a road traffic collision, or who commits a traffic offence, can expect to be breathalysed at any time, and may be required to perform an impairment test.
“Our message to any drivers who might consider drinking and driving would be: just don’t risk it. The danger to others and the consequences of being caught can be long-lasting and life-changing.
“We will remain vigilant in detecting those drivers who present a risk to themselves and others.”