Police emphasised their concern over the spike in number of people driving with methamphetamines in their system.
"While we have increased the mobility of our testing, it's staggering to see an increase of that magnitude," NSW Police Commissioner Scipione said.
Police are forecasting that by the 2016-2017 period, they will be able to test up to 100,000 drivers per year for cannabis, methamphetamine and MDMA, up from 38,500 in 2014.
Most positive drug tests occurred in the Sydney metropolitan area.
"Unfortunately, we think that we are going to find lots and lots of people that are using ice," Mr Scipione said.
"Anyone that is intoxicated is a great risk on the road."
Police will deploy 15 Random Breath Test (RBT) buses across the state over the Easter 2015 long weekend.
Source: ABC News