430 ILCS 67/5
As used in this Act:
"Family member of the respondent" means a spouse, former spouse, person with whom the respondent has a minor child in common, parent, child, or step-child of the respondent, any other person related by blood or present marriage to the respondent, or a person who shares a common dwelling with the respondent.
"Firearms restraining order" means an order issued by the court, prohibiting and enjoining a named person from having in his or her custody or control, purchasing, possessing, or receiving any firearms or ammunition, or removing firearm parts that could be assembled to make an operable firearm.
"Intimate partner" means a spouse, former spouse, a person with whom the respondent has or allegedly has a child in common, or a person with whom the respondent has or has had a dating or engagement relationship.
"Petitioner" means:
"Respondent" means the person alleged in the petition to pose a danger of causing personal injury to himself, herself, or another by having in his or her custody or control, purchasing, possessing, or receiving a firearm, ammunition, or firearm parts that could be assembled to make an operable firearm or removing firearm parts that could be assembled to make an operable firearm.
430 ILCS 67/5