Police are warning parents to buckle in children after a toddler was discovered asleep in the footwell of a car and two siblings unrestrained on the back seat when the driver was pulled over.
A Hamilton Police dog handler stopped the woman motorist on Wairere Drive in the north of the city for "concerning" driving at midnight on Wednesday.
The incident comes just weeks after a baby died from injuries after being thrown from her mother's lap in a car accident south of Te Kuiti, and a woman in Hamilton was seen breastfeeding her child in the front seat of a moving vehicle.
Waikato District Road Policing Manager Inspector Freda Grace said the three unrestrained children in the latest incident could have been killed and it was disappointing some adults did not heed warnings.
The sleeping girl in the footwell of the front passenger seat was 2 and the two children in the rear seat were 4 and 5.