Charges have been laid after a a 22 year-old man was arrested in Hamilton South over the weekend.
Police stopped a suspicious vehicle during a patrol at about 11:35 on Saturday night, and discovered over 50 grams of methylamphetamine, cannabis and cocaine.
The drugs were seized by police, and are estimated to be valued at more than $30,000.
The man was also charged with having custody of a knife in a public place.
He was refused bail and will appear in Newcastle Local Court today.