Administrative power is the residual power that is neither legislative nor judicial. It is concerned with the treatment of a particular situation and is devoid of generality. It has no procedural obligations of collecting evidence and weighing argument. It is based on subjective satisfaction where decision is based on policy and expediency. It does not decide on a right though it may affect a right. Advisory and investigative power of agencies may be mentioned as two typical examples of administrative power. In its advisory function, an agency may submit a report to the president or the head of executive and the legislature. Cases falling under advisory function include proposing a new legislation to the legislature, and informing the public prosecutor the need to take measure when there is violation of law. Disclosing information to the general public that should be known in the public interest and publishing advisory opinions are also regarded as advisory (administrative) functions.
Investigation is one of the major functions of administrative agencies. While exercising their investigative powers, agencies investigate activities and practices that may be illegal. Because of this investigative power, agencies can gather and compile information concerning the organization and business practices of any corporation or industry engaged in commerce to determine whether there has been a violation of any law. In exercising their investigative functions, agencies may use the subpoena power. A subpeona is a legal instrument that directs the person receiving it to appear at a specified time and place either to testify or to produce document require reports, examine witnesses under oath, examine and copy documents, or obtain information from other governmental offices. This power of investigation complements the exercise of the agency‘s powers, especially the power to adjudicate.