(725 ILCS 5/112-8)
When an instrument
that is the subject of an indictment
has been destroyed or withheld by the act or procurement of the defendant, and
the fact of the destruction or withholding is alleged in the
established on trial, the accused shall not be acquitted on account of any
misdescription of the instrument so withheld or destroyed.
(Source: P.A. 89-234, eff. 1-1-96.)