(705 ILCS 35/4)
(from Ch. 37, par. 72.4)
There shall be no stated terms in the circuit courts, which shall
always be open for the transaction of all business, subject to adjournment
from time to time. The circuit judges in each circuit shall prescribe by
rule the times of calling grand and petit juries in each of the counties of
the circuit and the periods for which the jurors shall serve.
(Source: Laws 1963, p. 2642.)