Police have seized more than 3.5-million dollars worth of meth, from one 43 year old Hutt Valley man

A national organised crime investigation's been looking into a large-scale meth operation across the Lower North Island.

Police searched this man's vehicle, and found more than 100-thousand dollars in cash, and a quantity of meth.

A search of his house, found 10.5 kilos of meth, other drugs, 500-thousand dollars, and a gun.

The man is before the courts on multiple charges.