Police service calls have been studied widely in the Western context, but they are rarely discussed in the Chinese context. For the context of this study, it is important to note that the Chinese authorities implemented the strictest lockdown after the COVID-19 pandemic began. Drawing on the data from a county-level city in Hubei province, this study examines changes in the quantity and nature of 110 service calls before, during, and after the COVID-19 pandemic lockdown. The results indicate that the average weekly call numbers before and after the lockdown were higher than during the lockdown. Meanwhile, different call types produced different patterns, though the weekly call totals decreased during the lockdown. There was a significant decrease in crime, traffic, and dispute calls, but a substantial increase in calls related to domestic violence, public security, and other issues. Changes in the frequency of different call types pose challenges to police departments. These findings will have implications for deploying police forces and allocating resources within the pandemic crisis in particular.

This study examined the temporal variations in calls for service before, during, and after the COVID-19 pandemic lockdown in China using a sample of 37,124 police service calls made from January 1, 2019, to December 31, 2020 to a 110 command center in a county-level city in Hubei Province. There was a significant temporal effect, and the calls for service peaked between 08:00 and 19:59 throughout the entire period. The busiest hours of the day for calls for police service were between 12:00 and 19:59, and the calls peaked between 12:00 and 15:59 during the lockdown. The distribution of calls by weekday showed no significant pattern, with the exception of traffic-related calls. The results are discussed from the perspective of routine activity theory.