Derbyshire police are stepping up patrols in the holiday period to help fight domestic abuse and other violence.
Operation Impact, which runs until 31 January, will involve giving advice to the public and checks on pubs and bars.
Spokesman Alec Wood said the force is determined to reduce violent crime over the holidays and into the New Year.
Police will work with Pubwatch, district and town councils and Derby City Council.
In Derby, evening patrols will start earlier so that officers and staff can speak to people about responsible drinking.
A mobile police station will be set up in Chesterfield town centre on Friday and Saturday nights, allowing people to report incidents directly to an officer.
Mr Wood said: "There is always the potential for violent crime and domestic abuse to rise at this time of year. Families are together more than usual, more alcohol is consumed and tempers can often fray."