(735 ILCS 5/5-103)
(from Ch. 110, par. 5-103)
Dismissal for want of security.
If any such action is commenced
without filing such written
instrument, the court, on motion, shall dismiss the same, and
the attorney of the plaintiff shall pay all costs accruing thereon,
unless the security for costs is filed within such time as is
allowed by the court, and when so filed it shall relate back to the
commencement of the action; the right to require security for costs shall
not be waived by any proceeding in the action.
(Source: P.A. 83-707.)