Control

Control n.
The direct or indirect power to direct the management and policies of a person or entity, whether through ownership of voting securities, by contract, or otherwise; the power or authority to manage, direct, or oversee.
Control vb.
1. To exercise power or influence over.
2. To regulate or govern.
3. To have a controlling interest in.
(Black's Law Dictionary 8th ed., © 2004 West Publishing)

The Supreme Court of Rhode Island cited control as one of the key issues in the State of Rhode Island v. Lead Industries Association Inc.:

"This Court recognizes three principal elements that are essential to establish public nuisance: (1) an unreasonable interference; (2) with a right common to the general public; (3) by a person or people with control over the instrumentality alleged to have created the nuisance when the damage occurred." State of Rhode Island v. Lead Industries Association Inc., et al., at 17 (emphasis added).