Jones produces his evidence and calls his witnesses.

Robinson, through his learned counsel, cross-examines them and then summons his own witnesses to prove his innocence.

The proceeding may take several days or perhaps weeks.

Briefs are submitted.
The magistrate considers the testimony and finally decides that he believes Robinson guilty and must hold him for the action of the grand jury.

You might now, it would perhaps seem, have some reason for suspecting that Robinson was not all that he should be.