Quietly imposing, Martin is a reassuring presence in the station, particularly for Gabriel, who trusts him more than any of his other colleagues. He works hard and methodically, and he does things by the book, meaning that he finds some of Gabriel's more unorthodox methods of policing uncomfortable to witness. Martin's an ordinary guy - warm, caring and sensible - and finds some of the more gruesome parts of his job too much to deal with at points.
