A bag found stuffed with cash and drugs following a crash was discovered by police dogs in the early hours of Friday.
The bag, full of £10 and £20 notes, was discovered in Lower Sundon, Bedfordshire.
Police tweeted: "Did you lose a bag of money and drugs?
"Please come to police HQ where we'd love to chat."
The bag was connected with a road crash from which the driver is thought to have fled.
Police have appealed for anybody who saw a man in the area, described as being in his 30s, wearing a red sleeveless top and dark tracksuit bottoms. He is thought to injured his face in the crash.