This protocol details the work plan for a systematic scoping review on the spatial and temporal patterning of emergency reactive police demand (ERPD), typically measured using calls for service data. The review seeks to provide an account of the available literature, guided by the answering of a set of exploratory research questions. The protocol is based on the PRISMA extension for scoping reviews andhas been openly published prior to undertaking the review (https://osf.io/5zshd/).