related criminal investigation
(4) In this subsection, the terms “related criminal case” and “related criminal investigation” mean an actual prosecution or investigation in progress at the time at which the request for the stay, or any subsequent motion to lift the stay is made. In determining whether a criminal case or investigation is “related” to a civil forfeiture proceeding, the court shall consider the degree of similarity between the parties, witnesses, facts, and circumstances involved in the two proceedings, without requiring an identity with respect to any one or more factors.