The document discusses the nature of liens under Malaysian law. It defines a lien as a right to retain possession of property belonging to another person until a debt owed is satisfied. A lien is a form of security interest created when a property owner deposits the original title document of their land with a lender as security for a loan. For a statutory lien to be valid, the lender must lodge a lien-holder's caveat on the land with the land office. The document analyzes several court cases that discuss issues such as how liens are created, whether consent is needed to lodge a caveat, and priority of liens over other interests like charges or judgments.