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.
A metallic taste is a useless diagnostic indicator, because it can be a result of any inflammatory condition of the mouth, upper respiratory tract, and digestive tract, In short, it is non-specific, and doesn't get a diagnostician any closer to the goal of identifying the problem.