A police officer suffered serious leg injuries after a driver reversed towards him – pinning him between the vehicle and a police car.
He then drove off and crashed the car into a wall.
But it is believed the incident was the second time that night the driver crashed a vehicle in Heckmondwike - as he earlier abandoned a Ford Focus when it struck two parked cars.
A 29-year-old man has since been arrested on suspicion of driving offences.
Police were initially alerted at 8.20pm on Thursday when officers attended Bunkers Lane in Heckmondwike after a Ford Focus had collided with a parked Vauxhall Vectra and Nissan Micra.
Around 20 minutes later officers attempted to stop a Vauxhall Astra on Sunnyside, but the car instead made off and reversed towards two male officers, injuring one of them.
The Astra left the scene and was found to have crashed into a wall a mile away on Walkley Lane.
The officer was treated for serious but non-life threatening leg injuries in Pinderfields hospital.
Det Insp Steph Wiseman from Kirklees CID, said: “Enquiries are ongoing today into this series of incidents which we are linking and treating as one inquiry.
“I would like to speak to anyone who saw the initial collision on Bunker Lane, the collision in which the officer was injured on Sunnyside or the final incident on Walkey Lane in which the silver Astra was in collision with a wall.
“A 29-year-old man remains in custody today in connection with these incidents.
She added: “One of our officers received leg injuries in the second collision. These injuries while serious, were thankfully not life threatening but he remains in hospital for treatment.”
Anyone who has information is asked to contact Kirklees CID on 101 or Crimestoppers anonymously on 0800 555 111.
In unrelated investigations, police would like to speak to the people pictured in the image gallery below. The people pictured in the images may be witnesses as well as suspects. If you recognise anyone, contact police on 101 quoting the reference number on the image caption.