At about 4.45am on Friday police swooped on a Moncrieff home and seized 28 grams of a crystalline substance suspected to be methamphetamine.

During the search of the home they also say they found about 1.4 litres of what they suspect is liquid methamphetamine, as well as a substantial quantity of crystalline substance, also suspected to be methamphetamine, in the carpet of a bedroom.

A 37-year-old man was arrested and charged with trafficking in a controlled drug other than cannabis. Investigations are ongoing and further charges are anticipated.

The man was identified as a person of interest in July when police began an investigation into drug and prohibited substance trafficking and the possession of prohibited firearms.