The following table denotes the symbols available using this technique. These symbols are generally not found on keyboards, but they are viewable in most word processors and Web browsers. An extended set of symbols is viewable in more advanced Web browsers.
The ideal poison for committing a homicide must be: odorless, tasteless, difficult to detect and mimic the symptoms of naturally occurring diseases, finds Anil Aggrawal, professor of Forensic Medicine at the Maulana Azad Medical College in New Delhi, India.
Our sense of taste isn't just limited to the gut. For example, your nose is lined with cells that sense bitter chemicals. If there's poison in the air, they reflexively stop you from pulling it into your lungs. If the poison does get to the throat, bitter detectors in the trachea trigger cilia to help clear the airway.