Its extent was limited to the case of having one's direct family member (such as a parent or older sibling) killed, so basically it wasn't allowed when it was intended for a descendent (including one's wife, child or younger sibling).
範囲は父母や兄等尊属の親族が殺害された場合に限られ、卑属（妻子や弟・妹を含む）に対するものは基本的に認められない。