(1) A person ( "the defendant" ) does not owe a duty to another person ( "the plaintiff" ) to warn of an obvious risk to the plaintiff.(2) Subsection (1) does not apply if (a) the plaintiff has requested advice or information about the risk from the defendant; or(b) the defendant is required by a written law to warn the plaintiff of the risk; or(c) the defendant is a professional, other than a medical practitioner, and the risk is a risk of the death of or personal injury to the plaintiff from the provision of a professional service to the plaintiff by the defendant in the defendant's professional capacity.(3) Subsection (2) does not give rise to a presumption of a duty to warn of a risk in the circumstances referred to in that subsection.