"While this is effective on a small scale, it is the Police Minister's goal of being at every major event, which is where the most harm could be prevented," she said.
She said testing had been under way at venues around the country since the return to alert level 1, and the agency would continue to operate regardless of whether the government takes action or not.
However, she said expanding the services was a matter of urgency.
"We know there's a lot of MDMA around, we know that there are a lot of MDMA knock-offs around, and we know that there are a lot of people concerned that they may not be able to party," she said.
Ardern said any changes would be about recognising the value of drug-checking schemes.
"It's about saying that actually there is evidence overseas that those regimes save young people's lives. Who would we be to turn away from that," she said.
- RNZ