By Imran AliA Northland road safety exponent has welcomed an initiative to catch drug-impaired drivers through roadside saliva testing, saying motorists under the influence of drugs need to be stopped in their tracks. Associate Transport Minister Craig Foss plans to recommend saliva testing to Cabinet based on a review of the drug-driving enforcement regime. The current method involves only a manual impairment test that, if failed, requires a blood test. Saliva tests take up to five minutes - much longer than a breathalyser. "Since cannabis stays in the system for a long time, saliva is a better test because it's a better indication of recent use," she said.

Source: New Zealand Herald August 28, 2016 22:18 UTC