A new screening lab at Auckland Airport will allow staff to test possible illicit substances on the spot.
The forward screening lab - a partnership between Customs and forensic science provider ESR - was opened today.
It will be operated by ESR staff to give Customs faster access to preliminary analyses of material or substance of interest.
Comptroller Carolyn Tremain said Customs was committed to using science and technology to strengthen its efforts to disrupt the illicit drug supply chain.
"The new screening lab brings significant efficiencies to Customs' work, and I am confident that having this lab located at the border will benefit both agencies and New Zealand."