Alex Thomson is a consultant liaison psychiatrist at Northwick Park Hospital and clinical network lead for psychological medicine at Central and North West London NHS Foundation Trust. He was a member of the NHS England Mental Health Crisis Care Subgroup which developed London’s Section 136 Pathway and Health Based Place of Safety Specification and is leading the introduction of the Framework for Routine Outcome Measurement in Liaison Psychiatry at CNWL; James Hughes is a liaison psychiatry team manager at St Mary’s Hospital; Genevieve Holt is a clinical fellow in liaison psychiatry at Northwick Park Hospital.