Justification means it is not unjust. That's the point. That's going to vary depending on the culture in which the violation is occurring - as it should.

It's not really the intention that matters, but the circumstances motivating the action initially.

Example: murder in the course of self defence as "justifiable homicide" or the warranted tapping of someone's phone under supervision of the judiciary

The issue occurs here because those traditional national lines, which happen to also include cultural lines, are themselves being violated and we have no effective incidental means of addressing or justifying the act.