The act of “malicious damage” occurred around 17:00 yesterday on Normand Avenue in the area of La Pouquelaye in St. Helier.
Police reported that a darkly-dressed individual approached the car – a black Volkswagen Gold SE TDI – before using an “unknown implement” to scratch its roof.
Pictured: The damage was done to the car on Normand Avenue, Police said.
The perpetrator was described as wearing a black beanie hat, dark hoodie and dark trousers.
They would like to speak to anyone who saw the incident, and are urging those with information to call them on 612612.
Anonymous reports can also be made via Crimestoppers on 0800 555111 or by filling in an online form.