Plaintiff-intervenor Seabrook Citizens for the Defense of Home Rule (“SCDHR”) appeals from summary judgment sustaining the constitutionality of certain New Hampshire statutes which regulate Sunday dog racing. While we might well agree with the district court’s resolution of the substantive issues, we affirm on another ground.
We are confronted by the fact that SCDHR has previously raised the same claim and many of the same legal arguments before the courts of New Hampshire in an action against basically the same defendants as here.
1
See Sea-brook Citizens for the Defense of Home Rule v. Yankee Greyhound Racing, Inc.,
“The heart of the doctrine of res judicata is that a final judgment by a court of competent jurisdiction is conclusive upon the parties in subsequent litigation involving the same cause of action.” Concrete Constructors, Inc. v. Manchester Bank,117 N.H. 670 ,377 A.2d 612 , 614 (1977). Under the doctrine, a final judgment on the merits in one suit absolutely bars a subsequent suit involving the same parties, or their privies, as to all matters which were litigated, or might have been litigated, in the first suit, absent some extenuating circumstances. Indian Head Nat’l Bank v. Simonsen,115 N.H. 282 , 284,338 A.2d 546 , 547 (1975); Laconia Nat. Bank v. Lavallee,96 N.H. 353 , 355,77 A.2d 107 , 108 (1950).
Bricker v. Crane,
Affirmed.
Notes
. Defendants in the state court action included the State of New Hampshire, the New Hampshire Racing Commission and Yankee Grey- bound Racing, Inc. The federal court action deletes from this list Yankee Greyhound, but adds two named officials of the Commission.
. The Town of Seabrook has not appealed from the district court's entry of summary judgment.
