At least in England and Wales the pandemic seems to have led to a reduction in crime:

> Total police recorded crime decreased by 4% in England and Wales to approximately 5.8 million offences in the 12 months ending June 2020; police reported crime levels were relatively stable from July 2019 to March 2020 and the annual decrease was mainly driven by substantial falls during the April to June 2020 period, particularly in theft offences.

https://www.ons.gov.uk/peoplepopulationandcommunity/crimeand...