
The Drug Detection Agency (TDDA) has become the first New Zealand testing organisation to be recognised by International Accreditation New Zealand (IANZ) for oral fluid collection.
This is the same technology that the NZ Police will use in proposed roadside testing under the Land Transport (Drug Driving) Amendment Act.
The IANZ accreditation means processes meet rigorous standards and critical aspects of oral fluid testing, including collection, storage, handling and dispatch.
TDDA is the largest provider of workplace drug and alcohol testing in New Zealand and helps companies, including those in the transport industry, do over 250,000 screenings a year.
“Being the first testing and collection agency to achieve IANZ accreditation means our clients can have confidence that our testing processes are of the highest level, giving them accurate and actionable information that will withstand a legal test if it arises,” TDDA chief executive Glenn Dobson says.
Oral fluid testing analyses samples of saliva for the presence of illegal drugs and prescription medications and has seen significant technological advancements over the years.
In many settings it is a preferred method of testing, capable of detecting a wide range of drugs with acceptable accuracy and reliability.
A report by Business Leaders’ Health and Safety Forum suggested that poor health and safety performance and progress cost New Zealand $4.4 billion in 2022 alone.
Around 70 people die from work-related accidents each year – higher per capita than in Australia and the United Kingdom.
“TDDA’s comprehensive substance testing solutions are tailored for all safety sensitive industries where safety and precision are non-negotiable, including transport, manufacturing, construction, civil works, forestry and farming,” Dobson says.
“Our testing can detect a wide range of substances, including amphetamines, methamphetamines, opioids and cannabis.
“In high-stake industries where heavy equipment is frequently used, businesses must be vigilant. We understand that health and safety management is a part of day-to-day business, and we are dedicated to ensuring that our clients can completely trust in the safety and accuracy of our services.
“The IANZ accreditation provides our clients with the assurance that TDDA’s drug testing processes are both compliant and independently audited, allowing them to effectively manage drug risks and uphold their commitment to an active safety culture,” Dobson says.



