Essex Police arrested nearly 150 people during its Christmas anti-drink and drug driving campaign.
Between 1st December and New Years’ Day – 102 were held for drinking offences and 46 for drug-driving.
The totals are down slightly on 2016.
Five have already been convicted in court.
The Casualty Reduction team says the numbers are just the tip of the iceberg – with one in ten collisions in Essex last year involving drink-drivers.