OTTAWA -- The Supreme Court of Canada has declared the country's controversial anti-terror law to be constitutional in a series of rulings that affirms how terrorism is defined in the Criminal Code.

In a 7-0 ruling, the court has dismissed a series of charter appeals brought by three men, including terrorist Momin Khawaja, the first person ever charged under the anti-terror law.

The court said an Ottawa trial judge erred by giving Khawaja too light a sentence of 10 1/2 years in prison and endorsed the life sentence later imposed by the Ontario Court of Appeal.

The rulings also upheld the extradition order against two other men, Suresh Sriskandarajah and Piratheepan Nadarajah, who can now be sent to the United States to face trial on charges of supporting the Tamil Tigers, a banned terrorist group.

The high court flatly rejected a series of constitutional challenges brought by the three men.