The wife of the us intelligence officer involved in the fatal collision that killed British teenager Harry Dunn could be handed a red notice by Interpol, meaning she risks being arrested if she ever leaves the US.

Anne Sacoolas, 42, was wrongly granted diplomatic immunity after the crash in Northamptonshire on 27 August when she hit the 19-year-old Mr. Dunn’s motorcycle.

It is understood Mrs Sacoolas was driving on the wrong side of the road.

She was “spirited out” of the UK on a military aircraft three weeks after the incident and Mr Dunn’s family have been told by the US security adviser that she will not be returning to face justice.

Robert O’brien instead tried to arrange a meeting between the teen’s parents and Mrs. Sacoolas at the White house, followed by a photo opportunity where he hoped the parties would embrace.

The family’s lawyer Mark Stephens Mr. O’brien branded a “nincompoop in a hurry” for the failed stunt.

He added: “Having ice in your veins is a very good characteristic for being a spy, but thinking you can treat people that way you have to be a nincompoop.

“He blamed additional grief and pain on the Dunn family, which was completely unnecessary – he started it by forcing her to be a fugitive from justice, sending her out of the country on a USAF transport without informing Northamptonshire police.”

The family declined to meet Mrs Sacoolas, although they added that Donald Trump said “let’s try and come at this another way” and were hopeful he would take steps to move the situation forward.

Northamptonshire Police said they would soon submit a case file on the crash to the Crown Prosecution Service for a charging decision.

If Ms. Sacoolas is charged with causing death by dangerous driving, or the more serious charge of causing death by dangerous driving, the force can issue an extradition request or a red notice from Interpol.

The family also has the option of bringing a civil case against Ms. Sacoolas.

“It is often not understood that diplomatic immunity only applies in the host country, so the UK, not the home country-it evaporates the moment you set foot on American soil,” Mr Stevens said.

“It wouldn’t be about the money, it would be about trying to ensure she gives an account and reporting.”

MS Sacoolas was wrongfully granted immunity because her husband is an intelligence officer and was not in a recognised diplomatic role such as military attache or trade Secretary.

Even diplomats are entitled to immunity only after they have taken their authority to register with forskom. Diplomats who have committed an offence between appointment and registration with the foreign office may continue to be prosecuted.

Mr. Stevens said that by making Ms. Sacolas a “fugitive,” it was obvious that U.S. officials knew she was not entitled to immunity because the purpose of the law was to allow diplomats to continue to work in the host country.

“It’s almost unique, in fact I think it’s unique that someone who claims diplomatic immunity has fled justice and fled control of their diplomatic status.”

He said he understood the US did not want to blow the lid off the case, but created interest in the case, which otherwise only attracted a community proposal and little media attention.

Northamptonshire Police said: “We we will do everything on our side to ensure a full and thorough investigation takes place in order to get the justice for Harry and his family deserve.

“In addition, we are working very closely with the Crown prosecution service, with whom we visited the scene of the collision earlier today. We expect that we will be able to present the case as soon as possible to the CPS.

“The police investigation is still ongoing and, if necessary, a dossier of evidence will be presented at the conclusion of the investigation.”

Mr Stephens said the force had the option of making an extradition request or placing an Interpol red notice on Mrs Sacoolas.

“So if she goes to Canada or Mexico or any other jurisdiction, she will be arrested at the border and returned to the UK,” he said.