A motorcyclist who died in a crash with a car in Amersham was an off-duty police officer. 

Police Constable Simon Caddy died on Friday (May 26) after his motorbike was involved in a crash with a black Hyundai estate car on the A413 shortly before 7.30pm. 

The family of PC Caddy, who was off duty at the time of the crash, have now paid tribute to the "dearly loved" 29-year-old. 

In a statement, they said: "He had a unique ability to spread joy and humour to all he came into contact with. So dearly loved by family and friends, he will be deeply missed and forever with us in our thoughts.

"We would like to help support the police in encouraging anyone who may have any information, however small, to please come forward and contact the police to aid their enquiries."

PC Caddy joined Thames Valley Police in 2007, holding the roles of Police Community Support Officer (PCSO) based in Amersham then the following year took on the role of PSCO in Little Missenden.

In 2008 he became a student police officer and subsequently worked as a response officer and a neighbourhood officer.

His current role, since 2015, was as a Roads Policing officer based in Amersham.

His colleagues took to Twitter to say they were "lost for words" following the death of PC Caddy. 

Superintendent Simon Dodds, head of Roads Policing in Thames Valley and Hampshire, said: "We have tragically lost a member of the police family who worked tirelessly for the communities he served.

"Our thoughts are with his family and friends at this incredibly difficult time and they are being supported by a specially-trained family liaison officer.

"We are also offering welfare support to PC Caddy's colleagues, many of whom counted themselves among his friends.

"Those who were close to Simon are deeply upset but are continuing to display professionalism despite these tragic circumstances."

A 33-year-old woman from Aylesbury has been arrested on suspicion of causing death by dangerous driving and on suspicion of driving while unfit through drink or drugs.