(1) The duty to warn arises only under the limited circumstances specified in section 6-1902, Idaho Code. The duty to warn a clearly identifiable victim shall be discharged when the mental health professional has made a reasonable effort to communicate, in a reasonable timely manner, the threat to the victim and has notified the law enforcement agency closest to the patient’s or victim’s residence of the threat of violence, and has supplied a requesting law enforcement agency with any information he has concerning the threat of violence. If the victim is a minor, in addition to notifying the appropriate law enforcement agency as required in this subsection, the mental health professional shall make a reasonable effort to communicate the threat to the victim’s custodial parent, noncustodial parent, or legal guardian.