regulation by law

Bowhunting is practised in Australia and is not specifically subject to regulation by law.

The costermonger's trade in London is subject to regulation by law, under the administration of the Commissioner of the Metropolitan Police.

Congress's claim, Holmes contended, was that "circumstances have clothed the letting of buildings in the District of Columbia with a public interest so great as to justify regulation by law."

In principle these include: formal regulation by law, involving criminal and/or civil sanctions; self-regulation by the relevant professional bodies; or an amalgam of both formal law and self-regulation.