Final answer:
The authority to proceed with controlled acts is typically initiated via Orders to initiate the controlled acts or through a legal warrant, which is a document authorized by a judge giving police search and seizure powers under certain conditions.
Step-by-step explanation:
The process through which the authority to proceed with the controlled act is initiated is typically through B) Orders to initiate the controlled acts. In legal contexts, particularly within the scope of law enforcement, this could be the issuance of a legal document such as a legal warrant. A warrant is a document signed by a judge that grants the police the authority to perform searches and seizures under certain conditions. For instance, the Fourth Amendment to the U.S. Constitution requires government officials to obtain a search warrant before conducting most searches or seizures, ensuring the protection of individuals' privacy rights. Nevertheless, there are exceptions when a warrant is not necessary, such as with the consent of the owner, exigent circumstances, or when the items are in plain view.