As a result of the suspect's activities the Federal Government may elect to bring additional allegations that the suspect's derived assets, property, estate and proceeds were a result of the charged criminal activity .
The Government usually relies on the RICO statutes 21 U.S.C. Prov.1963, 21 U.S. C. Prov. 848, Continuing criminal activity and 21 U.S.C. Prov. 853, Criminal forfeiture provisions in connection with federal drug charges.
This process is not free from potential flaws and mistakes and must be addressed on a case by case basis.
Having a criminal defense attorney to represent your legal interests at that judicial procedure is a reasonable thing to do. Please call to discuss your needs further.