Abstract: „In this article, we investigated the effects of the Covid-19 crisis and lockdown on social stability within the individual level, group level and society level. To investigate these effects, data from incident reports of emergency services (i.e., police, fire brigade and ambulance) in the South of the Netherlands from 2018 to 2020 were collected. An incident is defined as an unique notification with deployment of one or more emergency service(s). Incidents were categorized according to the standardized classification LMC 6.0. We investigated regional differences from 2018 to 2020 using monthly time trends. On the individual level we found a time trend in accordance with the onset of the lockdown, with a decrease in property crime operationalized as theft, burglary and robbery, and an increase in psychological effects, operationalized as suicide attempts and nuisance by a person. On the group level, operationalized as incidents nuisance by youth, noise, fireworks and vandalism, we found a time pattern with an increase in incidents coherent with the lockdown period. On the level of the society, operationalized as incidents public order, conflicts, violence and explosives, we also found an increase in incidents coherent with the lockdown period. We conclude that incident reports of emergency services give additional insight in the effects of a lockdown on social stability.“