To prove participation in a conspiracy, it’s imperative to demonstrate the individual had knowledge of the conspiratorial agreement and willfully chose to become part of it. It’s not enough to simply show they were aware of illegal activities; active agreement to join and further the conspiratorial objectives is crucial.
For example: If someone attends a meeting where a robbery plot is discussed and then provides tools for the heist, their intimate involvement could signify explicit agreement to the plan, suggesting willful participation in the conspiracy.