Wearing restraints in vehicles is the focus for police in Whanganui and around New Zealand this month.
Sergeant Colin Wright, who is in charge of road policing in Whanganui, said Op5 aims to ensure people are using restraints and that children are appropriate secured in vehicles.
"The force on safety belts can be as much as 20 times a person's body weight - this is how hard a vehicle occupant would hit the inside of their vehicle without restraint," Wright said.
"So far this year on Central District roads, one person has lost their life.
"This is a tragedy but is an improvement on previous years."