New York Consolidated Laws, County Law - CNT § 673. Deaths concerning which a coroner, coroner and coroner's physician or medical examiner has jurisdiction to investigate

(a) A violent death, whether by criminal violence, suicide or casualty;

(b) A death caused by unlawful act or criminal neglect;

(c) A death occurring in a suspicious, unusual or unexplained manner;

(d) A death while unattended by a physician, so far as can be discovered, or where no physician able to certify the cause of death as provided in the public health law and in form as prescribed by the commissioner of health can be found;

(e) A death of a person confined in a public institution other than a hospital, infirmary or nursing home.