Administrative agencies that work for government need someone to watch over them, and there is a need for laws that would punish illegal activities by those agencies. That was done through administrative law, law that covers government agencies that look over actions like rulemaking, adjudication and enforcement of specific regulatory agenda as well.
It would be quite stupid to talk/write about administrative law as a branch of law, because administrative law is different in almost every country due to government structure of said countries. Because of that I will only speak about administrative law in countries that have common law.
What is Administrative Law?
In those countries Administrative law limits the reviewability of decisions from other bodies, decisions that are made through administrative law. Proper rulemaking is therefore run on the standard which are established on the doctrines of common law, legislation and aspects of administrative law. Even though it is called administrative law it doesn’t mean that it has power over government only. Administrative law applies to decision review of semi-public bodies, organizations like disciplinary boards, non-profit corporations as well as other bodies that make decisions, decisions that affect rights of the members of such structures.
But not all administrative decisions are reasonable, and because of that reviewing courts can decide to set aside such decisions. The right to review the reviewers is established through statute ( in most of the cases ), but it was originally created from English law and its prerogative writs. For more information on this topic you can contact los angeles abogado criminalista.
Due to difference of administrative law from country to country, let us use USA as an example. Administrative law in USA has its main focus on executive and independent agencies and their actions. The reason for this is due to the fact that government opens a lot of those agencies, and they use them to legislate, adjudicate and execute administrative goals.