A driver seen driving on the wrong side of a dual carriageway was arrested after police received reports of pony and trap racing.
The incident happened on the A413 in Chalfont St Peter on March 14 when fellow drivers saw pony and trap racing on the road and called the police.
The vehicle in concern was a black Ford truck.
Thames Valley Police Chiltern and South Bucks said: “On arrival this vehicle was seen being driven on the wrong side of the dual carriageway.
“The driver was swiftly stopped and arrested on suspicion of dangerous driving and an investigation is now underway.”
Anyone who witnessed this incident or has dash camera footage which could help is urged to call 101 quoting 43210106680.
A concerned driver on the road at the same time took to social media and said: “They were reckless and dangerous and going on the wrong way.”