Labour has suspended former whip Fiona Onasanya and said she should resign as an MP after she was convicted of lying to police to avoid a speeding charge.
The 35-year-old solicitor, who now faces a possible jail sentence, was accused of colluding with her brother Festus after her car was clocked going 41mph in a 30mph zone in the village of Thorney near Peterborough.
The Old Bailey heard evidence the MP for Peterborough was texting as well as speeding on the evening of Monday July 24 last year, during the summer Commons recess.
Prosecutor David Jeremy QC told the jury she went on to lie “persistently and deliberately” to avoid prosecution.
Festus Onasanya, 34, from Cambridge, had pleaded guilty to three counts of perverting the course of justice over speeding, including over the July 24 incident.
But his sister, who was elected in June 2017, denied a single count of perverting the course of justice.
She was found guilty following a retrial at the Old Bailey, putting her political career in jeopardy.
It was sent back naming Aleks Antipow, an acquaintance of her brother Festus, who was away visiting his parents in Russia.
Authorities repeatedly tried to contact Onasanya at her home and in Westminster when they were unable to track down Mr Antipow at a false address.
When the Cambridgeshire Police camera unit asked Onasanya to provide correct information, she replied: “I have supplied the details made known to me as well as the licence information… I have provided a completed nomination previously.”
In a phone call on November 2 last year, she told an investigator that she “stands by her nomination”, jurors heard.
The singer-come-delivery driver already had nine points and risked losing his licence and his job if he received any more.
His sister had been caught speeding earlier last year and on that occasion filled out a NIP correctly and completed a speed awareness course to avoid three points.
A day after the first trial began at the Old Bailey, Onasanya’s former communications manager came forward to place her at his house in Thorney on the evening of July 24.
Christian DeFeo told jurors he never imagined in his “darkest dreams” that he would give evidence against the woman who he helped to election victory last June.
Giving evidence, Onasanya denied lying to police for the sake of three points on her licence.
She described her first weeks as an MP as like being chucked into the ocean and being expected to swim.
She stayed in London for four days a week, working from a corridor in Westminster and being deluged by thousands of emails.
When she received the NIP, she left it at her mother Paulina Scott’s Cambridge home for whoever had borrowed her car to complete, assuming she had been in London, she said.
She did not recall visiting the DeFeo house on July 24 but could not rule out being behind the wheel.
The episode confirmed the devastating diagnosis, she said: “I was told I had a relapse and they had found more lesions on my brain.
“I probably was not in the best head space. I’ve just been told I had got an incurable degenerative disease. I think that would preoccupy anyone.”
When she asked her brother about the ticket, Festus told her it was all “sorted”, she claimed.
Onasanya’s lawyer Christine Agnew QC described Festus as a charming chancer who tried to play on his sister’s standing as a lawyer and MP to get him “out of the hole”.
During the trial, Labour chief whip Nicholas Brown lent his support to his colleague, describing her as “honest, trustworthy and reliable”.
The Onasanya siblings face possible jail time when they are sentenced at the Old Bailey by Mr Justice Stuart-Smith at a later date.
Fiona Onasanya defeated the Conservative incumbent Stewart Jackson at the 2017 election, winning with a majority of just 607 votes.
“What your client should understand, although she knows the seriousness of this, I will listen to all considerations.”
Onasanya gave no visible reaction to the unanimous verdict and did not comment to reporters.
In a statement released immediately afterwards, a spokesman said: “The Labour Party is deeply disappointed in Fiona Onasanya’s behaviour.
“It falls well below what is expected of politicians. She should now resign.
“Fiona Onasanya is being administratively suspended from the Labour Party and therefore the whip with immediate effect.”
Donna Rayner, of the CPS, said: “Fiona Onasanya and her brother Festus both lied to the authorities in the hope they could avoid the consequences of their speeding offences.
“Fiona Onsanya denied perverting the course of justice but the CPS presented evidence that her phone was in the area when the speeding took place and the man she had nominated as the driver was, in fact, out of the country. Clearly the jury did not believe her explanation.”
A Cambridgeshire Police spokesman said: “We will continue to investigate those who think it is acceptable to try and evade the law in relation to motoring offences, working closely with the CPS to ensure those responsible are prosecuted.”