The UK wants to cancel the citizenship of the British wife of Syrian dictator Assad.

The UK government claims she participated in his horrible crimes. The proper way for it to act to those claims is indict her and ask Interpol to help arrest her. Given adequate evidence, a fair trial could convict her and sentence her to prison. This would be justice.

Cancelling someone's citizenship is wrong on its face, and since the UK does it without a trial, it is also punishment without trial.

In practice, the effect of either measure would be to prevent her from traveling to the UK or to a country that might extradite her to the UK. If she travels anywhere, it would be to a country that has decided to receive her as the spouse of Syria's president, and in that case it would not matter directly to her which way the UK had handled the matter.

But it will matter for justice to others in the future.