Due process is the legal requirement that the government must respect all legal rights that are owed to a person.[1] Due process balances the power of law of the land and protects the individual person from it. When a government harms a person without following the exact course of the law, this is a due process violation, which offends the rule of law.
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Due process is not used in contemporary English law. But it recognizes two similar concepts are natural justice and the British constitutional concept of the rule of law. However, neither concept lines up perfectly with the American theory of due process. It contains many implied rights not found in the ancient or modern concepts of due process in England.[4]
https://simple.wikipedia.org/wiki/Due_processExactly what is it that a few people think Ms Leyland was deprived of? Was it protection from the law of the land?