The accident took place a few yards from the entrance to the Royal Air Force base in Croughton, where Sacoolas’ husband was stationed at the time. He is thought to have been working at the US Air Force listening station, which is located inside the base. The American family had been in the United Kingdom for less than a month when the accident happened. British police charged Sacoolas with dangerous driving that led to the death of Dunn. However, the Sacoolas family left the country two weeks later, allegedly with the consent of the British Foreign Office. The Foreign Office reportedly agreed with the US government’s argument that Sacoolas had diplomatic immunity due to her husband’s work, and could not be tried for the accident.

Later, however, the diplomatic immunity claim was strongly disputed by Dunn’s family. Eventually British Prime Minister Boris Johnson and Foreign Secretary Dominic Raab requested Sacoolas’ extradition to the United Kingdom. But the White House refused to grant the request and suggested instead that financial compensation be paid to the family. The White House also proposed a meeting between US President Donald Trump and the parents of Harry Dunn, which they refused to participate in. In the meantime there were allegations in British and American media that Sacoolas used to work for the CIA and that her husband is an intelligence officer.

Now INTERPOL, the International Police Organization, has issued a red notice for Sacoolas, which theoretically means she could be arrested if she were to leave American territory. Speaking on Monday, Radd Seiger, a lawyer for Dunn’s parents, argued the INTERPOL move means that Sacoolas did not have diplomatic immunity at the time of the accident, since red notices “are not served on valid diplomats”, he said. He also called for the British parliament to launch an inquiry into the accident and into Sacoolas’ subsequent departure from the United Kingdom.