80 Ill. Adm. Code 1110.15
Investigations
Section 1110
Section 1110.15
Investigations
The extent and nature of all
investigations by the Board or its designated agents in the course of
representation proceedings shall be determined by the specific issues and facts
raised by the parties.
a) Investigations of the showing of interest for representation
petitions and intervention in elections shall include a review of the evidence
submitted to the Board that a sufficient number of employees desire
representation by an employee organization for purposes of collective
bargaining in order to establish that the levels of interest required by the
Act and this Part have been met.
b) Investigations of the showing of interest for a
decertification petition shall include a review of the evidence submitted to
the Board that 30 percent of the employees in the bargaining unit no longer
desire to be represented by the incumbent bargaining agent. The Board of its
designated agent will interview witnesses and take statements when necessary to
ascertain whether the evidence was obtained in accordance with the Act and this
Part.
c) Investigations relating to all other matters under this Part
shall include a review of all documents and other evidence submitted by the
parties and, when necessary, interviews of representatives of the parties or
other persons having knowledge of relevant facts.