4. Court may examine witnesses or documents before framing issues.- Where the court is of opinion that the issues cannot be correctly framed without the examination of some person not before the court or without the inspection of some document not produced in the suit, it may adjourn the framing of issues to a day not later than seven days and may (subject to any law for the time being in force) compel the attendance of any person or the production of any document by the person in whose possession or power it is by summons or other process. | 