A Chalfont St Giles banker who wore an old police uniform while riding his ex-police motorbike on his daily commute has been found guilty of deceiving the public into thinking he was an officer.

Drivers would have moved out of the way when they saw Darren Emanuel, 46, approach sporting a former police high-visibility jacket under a tabard bearing the words "POLITE notice think bike," a court heard.

Emanuel denied wearing a police uniform with intent to deceive but was found guilty after a trial at Hendon Magistrates' Court.

Chair of the bench Grant McCrostie said: "In our view, the effect of the police jacket together with the look of the vehicle combined to produce the look by which members of the public would be deceived into believing that you were a police officer performing his duties."

He added: "We accept that this offence may not have been your intention to deceive but that was the effect.

"Particularly at the moment, it is really important that the public have confidence in the police and your actions undermined that."

Emanuel, who works as a consultant to banks in the fields of regulation and legal compliance, was handed a conditional discharge and ordered to pay £670 in costs and charges after his lawyer Jessica Tate said if her client were to be fined "he will not work in his industry again".

Emanuel was pulled over on the evening of June 23 on Park Lane in central London.

He was riding a white ex-South police BMW R1200 RT motorbike, which he bought off eBay for about £2,500.

Prosecutor Carly Loftus said the bike was adorned with a Royal Corps of Transport crest sticker on the front screen and an ER Elizabeth Regina sticker below the rear number plate.

It also had a black and white chequered pattern along either side of the bike and a raised rear blue light.

PC John Harding, who stopped Emanuel, told magistrates: "I believe the whole picture of the jacket and the bike is giving the impression and deceiving members of the public, who driving through London, would move out of the way."

PC Harding, who policed the July 7, 2005 bombings and last year's Westminster attack, said: "Twenty days prior to this we had a terrorist attack in London and public confidence is at a low, and we need to reassure the public.

"I have been involved, myself, in two terrorist attacks in London and know first-hand what it does.

"I'm not saying Mr Emanuel is a terrorist but to give the impression and undermine public confidence ... he's driving through London and giving the impression he's a police officer by his sheer presence on the road."

Emanuel said he has been riding motorbikes for 20 years and was concerned about safety, having lost two friends in accidents.

He told the court "there was no indication" the jacket was an item of police clothing when it was given to him by the same man who sold the motorbike.

Emanuel said he had ridden the same motorbike while wearing the same outfit on around 40 occasions as he commuted a 60-mile round trip to and from work, and did not hope to get "special treatment" from the public.

"I was wearing exactly what was proscribed by the Highway Code - a white helmet and a high-visibility jacket with jeans and Chelsea boots," he said. This is not the kind of clothing worn by a police officer.

"The motorcycle I was riding - it was nothing like the type of motorbike police ride."

Emanuel said he destroyed the jacket and sold the motorbike after the incident.