Drivers were handed a timely reminder about the importance of fitting safe tyres with sufficient tread following a clampdown by police on private hire cars and taxis in Bradford.
The checks took place last weekend, under the coordination of the council, and saw a total of 33 vehicles checked as part of the initiative.
Following the checks, nine drivers were immediately suspended after their car tyres were found to be below the required tread depth for safe use.
In addition to this, six vehicle owners were issued with advisory notices to replace their compounds.
Four other drivers were also served with fixed penalty notices due to having insufficient tread receiving three penalty points along with a £60 fine each.
Sergeant Brian Watson, of the Tong and Wyke Neighbourhood Policing Team, said: “It is important that we ensure all vehicles in Bradford are fully roadworthy and legally fit to be travelling.
“This is a particularly poignant message at a time of year when conditions can often be difficult to negotiate.”