“…Our study provides insight into the early implementation of a patient safety checklist that has been designed in response to a profound shift in the demand on EDs in the UK (Redfern et al, 2018) especially in the winter periods where crowding undermines patient safety (Maguire et al, 2016). There is currently no published research-based evidence that the ED Safety Checklist improves patient safety, but it is premised on the basis of a substantial body of evidence which demonstrates the value of checklists in health care and in industries where safety is paramount (Catchpole, 2015;Hales, Terblanche, Fowler, & Sibbald, 2008;Kapur, Parand, Soukup, Reader, & Sevdalis, 2016;Kohn, Corrigan, & Donaldson, 2000).…”