What is the meaning of the term 'Due process of law"?

Lawyers of the opposing parties present their cases before a neutral judge who in turn provides a decision based on the merits of the case, as presented by the lawyers. If a law has been passed by the Parliament by following the proper procedure, then it will be a valid law. State must respect all the legal rights that are owed to a person and confirm to the norms of fairness, liberty, fundamental rights etc. Both 2 and 3

State must respect all the legal rights that are owed to a person and confirm to the norms of fairness, liberty, fundamental rights etc.

Independence of judiciary is vital for the respect of due-process of law. Due process of law means that the State must respect all the legal rights that are owed to a person and confirm to the norms of fairness, liberty, fundamental rights etc. Option 1 is a feature of adversarial model. Option 2 means Procedure established by Law.