Cremation

Question: What is the Halachah regarding mourning for someone who chose to be cremated?
Answer: It is obviously forbidden to cremate someone or be cremated (see Gesher Ha-Chaim chap. 16 #9), but even if it is done, all of the laws of mourning apply. After all, we also mourn today for those who desecrate Shabbat which is much more severe.