Police dog Maygar - WA's very first dual-purpose police dog - has helped nab a stash of drugs and an unlawful non-citizen in WA's Pilbara region, who now faces the prospect of deportation.

Police dog Maygar. Credit:WA Police

Maygar and his handler sprung into action on Thursday in South Hedland after receiving reports from members of the public about suspicious activity on Paton Road.

A 26-year-old man was questioned and it will be alleged an amount of cannabis and electronic scales were found on him.

The man was arrested and a search warrant was executed at his South Hedland accommodation.