Being the only legal administrative authority, the Jordanian High Court of Justice has been playing a significant role in maintaining legality or lawfulness for the last sixty years. Nonetheless, some of its interpretations and judgments have been the cause of curtailing its jurisdiction and the throwing out of court of some of its cases. This paper argues that the personal interest approach that this court has adopted stopped it from looking into a lot of sensitive cases that deal with legality or “legitimacy” and safeguarding Human Rights. This paper will show that personal interest in public law cases “contentieux objectif “differ from that in private law cases “contentieux subjectif”. Besides, the paper points out that the majority of public cases put forward or presented before the High Court of Justice are private law or “contentieux subjectif cases which require a lot of flexibility when dealing with the personal interest concept.