Sergeant Julia Richmond was the chief communication officer and a field operative for Section 20. She was responsible for maintaining contact with operatives in the field as well as assisting them in the field. Richmond was killed in action in Season 5, Episode 4.
In Season 2, Episode 10, She is injured in the attack on Section 20's mobile base in Budapest by Latif's Pakistani Militant Extremists.
Season 3 and Season 4 - Richmond begins to have a more advanced role in the field and goes out on assignments more often, probably due to the lack of Section 20 operatives.
Season 4 - Richmond and Scott start to fall in love and in the season finale start their relationship.
Season 5, Episode 4 - Richmond is kidnapped and killed my Mei Foster whilst on a mission to retrieve nuclear components from the Yakuza and Office 39. She is found dead in the road by Damien.