Section 58
Except as is hereinafter provided—
(a)
no witness shall be obliged or permitted to disclose the name and address of any informer under this Act or to state any matter which might lead to his discovery; and
(b)
if any books, documents or papers which are evidence or liable to inspection in any civil or criminal proceedings whatsoever under this Act contain any entry in which any informer is named or described or which might lead to his discovery, the Court or Magistrate shall cause all such passages to be concealed from view or to be obliterated so far as may be necessary to protect the informer from discovery but no further:
Provided that if in any criminal proceedings under this Act the Court after full inquiry into the case is satisfied that the strict enforcement of the provisions of this section would be likely to cause a miscarriage of justice, the Court may require the production of the original information and may permit inquiry and may require full disclosure to the Court concerning the informer.