Procedural substitution is an authority, power, ability, or procedural means by which one person substitutes for another in judicial proceedings and related procedures, provided they are complementary. Judicial action cannot be completed without it, in order to serve the interests of both parties, except in cases where the law specifically prohibits substitution. Procedural substitution is simply a procedural means established by procedural law to provide judicial protection for disputed substantive rights. Here, substitution refers to a substitution of procedural legal positions. Procedural substitution is achieved through a legal provision, a court ruling, or by agreement. Procedural substitution enhances the judicial system by reducing expenses and streamlining procedures, in addition to protecting substantive rights and legal positions.