People in Leicester are being advised to buy fireworks from licensed shops.
Last year damaged and dangerous goods were illegally sold around housing estates from vans last year in the county.
Leicestershire Police are warning against any deals which appear significantly cheaper than usual.
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"This is going to cost LOROS thousands of pounds which could have been spent caring for terminally ill people."
Stella Manzie will take over after running the council until a permanent chief executive is found.
It comes after months of protests following United Lincolnshire Hospitals NHS Trust's (ULHT) decision to close the unit overnight.