Some would argue that only one known example of a true free market exists, namely the black market. The black market is under constant threat by the police, but under no circumstances do the police regulate the substances that are being created. The black market produces wholly unregulated goods and are purchased and consumed unregulated. That is to say, anyone can produce anything at any time and anyone can purchase anything available at any time. The alternative view is that the black market is not a free market at all since high prices and natural monopolies are often enforced through murder, theft and destruction. Black markets can only exist peripheral to regulated markets where laws are being regularly enforced.