The Metropolitan Police chief said a campaign launched to identify possible victims of female genital mutilation (FGM) "warns" people of the law.
Sir Bernard Hogan-Howe said: "They have an option to stop - the fact they bought a ticket to me is irrelevant.
"They should not be committing a serious attack on a child and they should not be breaking the law."
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From tomorrow, tax discs will no longer be needed to show drivers have paid their vehicle tax. Richard Pallot reports on the end of an era.
Cooler, fresher feel with a bit of a breeze forecast for Wednesday
The world's populations of animals have dropped by more than half since the 1970s, according to a new survey by the WWF and the ZSL.