How Nnamdi Kanu's lawyers Aloy Ejimakor anBar Ifeanyi Ejiofor prevented from gaining access to court

The bearded guy is Bar Aloy Ejimakor and by side, to the left, is Bar Ifeanyi Ejiofor. They are Kanu’s two key lawyers. Why are they prevented from gaining access into the court? I just don't get it. They were eventually allowed in after the shouting match!

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