Which of the following is NOT one of the four methods of right of entry?

The method of right of entry that is not recognized as one of the four primary methods is voluntary admission. This refers to a scenario where an individual willingly allows an investigator to enter a property, but it does not constitute an established legal method of right of entry specific to investigations.

In contrast, consent, administrative search warrants, and criminal search warrants are all formal and recognized means by which law enforcement can gain entry to a property. Consent involves an individual giving permission for an investigator to enter, while an administrative search warrant is a legal document issued by a judge that allows inspection for regulatory compliance. A criminal search warrant also serves this purpose but is specifically associated with investigations into crimes. These methods are grounded in legal principles and are used to ensure that entries into property are conducted in a lawful manner.