The document discusses the implications and complexities of qui tam actions under false claims acts in relation to tax issues, detailing both federal and state legislation, particularly focusing on Illinois. It outlines various types of qui tam actions, typical defenses, and legal elements required for establishing liability, while emphasizing the impact of recent legislation and case law on taxpayers and retailers. The document also highlights the risks of class action lawsuits regarding tax collection and the evolving landscape of legal protections and actions for whistleblowers.