Diplomatic immunity typically covers families. The point of immunity is that a diplomat (or their family or staff) can't be arrested and threatened with the la

Diplomatic immunity typically covers families. The point of immunity is that a diplomat (or their family or staff) can't be arrested and threatened with the law in order to influence the diplomatic process. Thus it is really a matter of whether her husband was legitimately working as someone with immunity. Everyone says no. But if it's something like the CIA involved, event the UK gov't may only be going through motions of outrage for appearances and not trying to actually win an extradition.