Many first-time mothers (primiparous) within UK National Health Service (NHS) settings require an obstetric intervention to deliver their babies safely. While the antepartum period allows time for conversations about consent for planned interventions, such as elective caesarean section, current practice is that, in emergencies, consent is addressed in the moments before the intervention takes place. This paper explores whether there are limitations on the validity of consent offered in time-pressured and emotionally charged circumstances, specifically concerning emergency obstetric interventions. Using the (...) legal framework of the Mental Capacity Act,Montgomery v. Lanarkshire Health Board(2015) andMcCulloch v Forth Valley Health Board(2023), we argue that while women have the capacity to consent during labour, their autonomy is best supported by providing more information about instrumental delivery (ID) during the antepartum period. This conclusion is supported by some national guidelines, including those developed by the Royal College of Obstetricians and Gynaecologists, but not all. Further, we examine the extent to which these principles are upheld in modern-day practice. Data suggest there is relatively little antepartum information provision regarding ID within NHS settings, and that primiparous women do not report a thorough understanding of ID before labour. Based on these results, and bearing in mind the pressures under which NHS obstetric services currently operate, we recommend further research into patient and clinician perceptions of the consent process for ID. Pending these results, we discuss possible modes of information delivery in future practice. (shrink)