 Regulatory taking

In United States constitutional law, a regulatory taking is a situation in which a government regulation limits the uses of private property to such a degree that the regulation effectively deprives the property owners of economically reasonable use or value of their property to such an extent that it deprives them of utility or value of that property, even though the regulation does not formally divest them of title to it.In common law jurisdictions, state governments traditionally enjoy police power, under which a government may regulate a variety of aspects of the lives of its subjects.