The Bay of Plenty is seeing an increase in random workplace drug testing and nearly 8 per cent of all drug screening tests are turning positive.
Workplace drug testing across the nation is twice as much now over the past two years and this is due to the increase in awareness among employers about the harmful effects of drugs and alcohol on health and safety.
According to NZ Drug Detection Agency statistics, more then 75% of drug tests turned positive for cannabis use. Positive results for tests on the use of opiates also went up marginally but there was a 50% drop in use of methamphetamine.
Port of Tauranga chief executive Mark Cairns has confirmed discussions with unions about a formalised drug and alcohol policy for random drug testing of port workers.
"We haven't had a problem so far but safety at the port is paramount."