Dragnet of conspiracy refers to the tendency of prosecutors, in prosecuting for the crime of conspiracy, to charge as defendants all persons who have been associated in any degree whatsoever with the main offenders.
Mere association with an alleged co-conspirator is insufficient to sweep a person within dragnet of conspiracy. To sustain a conviction for conspiracy each co-conspirator should knew of, intended to join, and participated in the conspiracy. [United States v. Coppin, 1 Fed. Appx. 283 (6th Cir. Ohio 2001)].