There is a grey area between accidental death and suicide in which it is hard to tell which is which, but in many cases suicide is deliberately disguised as accident, and recorded as "accidental drowning," or "fall from a height."
意外與自殺本來就存在真相難辨的「模糊地帶」，但也不乏刻意隱藏自殺事實的情況，如跳水自殺以「意外溺斃」取代；跳樓以「意外墜落」名之… … 等等。