Click the link above.
Due Process; EQUALITY OF ARMS Clause (UK Rule).
Excerpts:
"As a general rule, real justice and a fair trial can only be achieved by open hearings, open disclosure, each side confronting the other’s witnesses and open judgments. But in certain circumstances, such equality of arms may have to be dispensed with in order to achieve real justice and a fair trial. Such procedures are adopted in certain classes of case (see the examples given below)."