As reported in the Guardian of 17 August 2016 (International news), many small clinical trials of ketamine as an anti-depressant were being conducted by psychiatrists. Many serious side-effects were recorded; patients often relapsed after a few days.
Sophie Stanton would later go on to be in Endeavour Season 6. Endeavour is a prequel to Inspector Morse, which is the prequel to Inspector Lewis.
Pippa Bennett-Warner, the reporter questioning Claire Gansa, would have a prominent role in the upcoming episode'The Indelible Stain'.