The principle that an individual should be free to follow his trade and use his skills without undue interference, thereby rendering a contractual term purporting to restrict an individual's freedom to work for others or carry out his trade or business void unless it is:
Designed to protect legitimate business interests; and
No wider than reasonably necessary.
For more information, see Practice notes, Restrictive covenants and garden leave (www.practicallaw.com/8-200-3267) and Atypical restrictive covenants (www.practicallaw.com/6-384-2533).