A Hamilton man who brought "party pills" into a police station to check whether they were legal is facing serious drugs and possibly explosives charges, police say.
The 26-year-old man took the pills into Hamilton Police Station with a request they be analysed to determine their legal status in March.
Police declined his request.
However, he also took the pills to a media organisation.
The media organisation commissioned an ESR test, which proved the pills contained a Class C drug modified from the Class A psychedelic drug "DOB", police said.