‘Necessity’is a legal construct which presumes acting beyond existing law in the interest of protecting a larger public interest. Glanville Williams says;
Glanville Williams se “Ahiadeɛ yɛ mmarasɛm bi a ɛkyerɛ sɛ ɛwɔ sɛ yɛyɛ nneɛma a ɛboro mmara a yahyehyɛ agu hɔ sɛnea ɛbɛyɛ a ɛbɛboa nnipa dodoɔ no ara.”