Lincolnshire Police are appealing for information following a collision that happened at 8pm on Sunday 3 August, on Fenside Road, Boston.
The rider of a Suzuki GSXS has been seriously injured after his motorcycle left the road and collided with a gate.
An officer driving a marked Hyundai Tucson had requested the rider stop and pull over shortly before the collision.
The rider, a man in his 40s, has been taken to hospital with injuries described as serious.
As part of the investigation, the force are appealing for anyone who witnessed the incident or was in the area and who saw either the motorcycle or the marked police car shortly before the collision. They would also like to hear from anyone who has recorded footage of either vehicle, any dashcam or doorbell footage etc, that would assist with their inquiries.
Anyone with any information is asked to contact the Investigating Officer by email at SCIUinvestigators@lincs.police.uk or call 01522 212316.
Incident 411 of 3 August refers.
