Hawke's Bay police are concerned the message is not getting through to road users about the deadly consequences caused by drinking while driving.
Senior Constable Andy Clinton said it is "really disappointing".
"No matter how many campaigns or how many times unfortunately someone is seriously injured or killed as the result of a drunk driver, people still do it and that strengthens our resolve to make sure that we keep the road safe for the communities because the majority of people don't accept this behaviour," Senior Constable Clinton said.
"We are starting to wonder what else we have to do to try to get this message across. Through the campaigns and being highly visible, people know we are out there.
Recently, the Traffic Alcohol Booze Bus went to Gisborne for the weekend, where they had a total of 19 drunk drivers failing the three stages of testing - passive test, screening test and evidential test.