Switzerland's high court has ruled that people who suffer from a mental illness can be helped by doctors to commit suicide. Because mentally ill patients are of sound mind and they can make such decisions, you see. Swiss may expand assisted suicide law.

Switzerland already allows physician-assisted suicide for terminally ill patients under certain circumstances. The Federal Tribunal's decision puts mental illnesses on the same level as physical ones.

"It must be recognized that an incurable, permanent, serious mental disorder can cause similar suffering as a physical (disorder), making life appear unbearable to the patient in the long term," the ruling said.

"If the death wish is based on an autonomous decision which takes all circumstances into account, then a mentally ill person can be prescribed sodium-pentobarbital and thereby assisted in suicide," it added.