A person was taken to hospital with serious injuries after a crash on the A156 in Fenton on Thursday night.
It happened at around 9.50pm on December 13, when a grey Skoda estate car and a black Ford Fiesta crashed.
The driver of the Fiesta was taken to Sheffield Hospital with serious injuries.
The driver of the other car suffered shock but was not reported injured.
Police would like to hear from anyone who was in the area and saw either car before the collision or saw the collision itself to call 101 quoting incident 456 of December 13.