Derbyshire Police have warned drivers and passengers they risk a fine if they are caught not wearing a seatbelt as part of a new crackdown.
Four hundred people were stopped and fined during a similar police operation in 2006.
Officers said many people were still refusing to wear a seatbelt on the county's roads.
Chf Supt Lynne Harris said she hoped the message would get through during this year's four week clampdown.
She said: "We don't want to see 400 people or anywhere near that number.
"What we'd like people to do is understand that people who don't wear seatbelts, if they have a collision, then there is more chance of getting more seriously injured or killed."