"Brief Encounters" is the 490th episode of Casualty and the 44th episode of the 19th series. It was preceded by "There Are Worse Things I Could Do" and followed by "Aftermath". The episode was directed by Jill Robertson and written by Catrin Clarke. This episode sees the departure of Bex Reynolds, portrayed by Sarah Manners.
Luke warns Bex of the police's suspicions as security guard Colin comes under pressure, and the terrified receptionist is eager to listen to his plan. Claire is distraught when her boyfriend leaves during Pete's funeral, and phones Will to update him on the pair's intentions. Guppy plays detective to discover whether his father's claims that Harry is involved in the drugs trial are true.