6 canonical passages across 6 cases, quoted by 34 opinions in total. These passages cluster together because the same opinions keep quoting them side by side — they state parts of one doctrine. The anchor passage is from Adcock v. Brakegate, Ltd..
| # | Case | Flag | Canonical passage | Citers |
|---|---|---|---|---|
| 1 | Adcock v. Brakegate, Ltd. Anchor | green | “a cause of action for civil conspiracy exists only if one of the parties to the agreement commits some act in furtherance of the agreement, which is itself a tort.” | 11 |
| 2 | McClure v. Owens Corning Fiberglas Corp. | green | “a combination of two or more persons for the purpose of accomplishing by concerted action either an unlawful purpose or a lawful purpose by unlawful means.” | 8 |
| 3 | Robin Willie Turner v. Hirschbach Motor Lines | green | “under illinois tort law, a civil conspiracy requires '(1) an agreement between two or more persons for the purpose of accomplishing either an unlawful purpose or a lawful purpose by unlawful means; and (2) at least one tortious act by one of the co-conspirators in furtherance of…” | 6 |
| 4 | Thermodyne Food Service Products, Inc. v. McDonald's Corp. | green | “a conspiracy claim alleging a tort as the underlying wrongful act is duplicative where the underlying tort has been pled.” | 3 |
| 5 | Charles Greenhill v. Richard Vartanian | green | “illinois starts the period of limitations no later than actual discovery, even if the potential defendant tried unsuccessfully to conceal the offense.” | 3 |
| 6 | Doctor's Data, Inc. v. Barrett | green | “because a successful conspiracy claim enables a plaintiff to hold co-conspirators jointly liable for actions by other members of the conspiracy, a conspiracy claim is only actionable if it is based on new facts or seeks to extend liability for the underlying tort to new defendan…” | 3 |
A red or yellow flag on a member means the underlying case has negative treatment — for those, check the case page before relying on the passage.