Opioid detections in workplaces are rising sharply. 

Workplace testing firm the Drug Detection Agency says detections of opioids like morphine and fentanyl has increased by more than a third in the past year. 

In Taranaki, it's recording almost five times as many opioids as the previous year. 

Chief Executive Glenn Dobson told Mike Hosking the stats will vary in comparison to wastewater, but they’re certainly a reflection of a subset of society.

He says anecdotally, they’re hearing a softening attitude around some drug taking.  

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