Justice is defined in the dictionary as the quality of being just, impartial or fair.
In recent times we've seen one side or another in demonstrations or news conferences demanding justice, but the way it's said, and the meaning implied, has nothing to do with being impartial or fair.
It seems individuals or groups in seeking the quality of justice, get caught up in the phrase and use it as a rallying cry to address perceived wrongs.
When some cry "we want justice" their passionate cry seems to be for the opposite. They seek a validation of their viewpoint, their opinions, their expectations and they forget that justice is represented as blind for a reason.
If the noble call for justice only means an intolerant demand for punitive action or reversing a decision no matter what, then it is not justice that one seeks, but vengeance.
It is extreme justice and as Cicero once said, that's extreme injustice.
The positive action of justice is truth and that is discerned by careful analysis, patient communication and a willingness to unconditionally listen.