Canadian Prime Minister Stephen Harper announces tougher measures against sex offenders.

Legislation will also create publicly accessible database of child predators.

The federal government acted to get even tougher on child predators at home and abroad as it unveiled plans for a publicly-accessible national sex offender registry and a law forcing convicted sex offenders to alert authorities before they travel internationally.

Under the Tougher Penalties for Child Predators Act, to be introduced in Parliament this fall, convicted sex offenders and their parole and probation officers must notify police of any international travel plans. Police would inform border guards who would then — “where appropriate” — alert destination countries that a dangerous offender is coming their way.