2. 最近收到之前公司发来的信函，说有确切消息，我在那个公司挖人，警告我，如果发生类似的事情他们要走法律程序。公司和我之前的雇佣合同确实有很多条条框框的限制，要求不许雇佣他们公司人了之类的 (这个条款在很多大型国际商业公司都有存在）。例如' 21. Restrictive Convenants. 21.1 - For a period of 12 months after termination carry on or be connected, engaged, or interested either directly or indirectly or alone or with any other person or persons whether as principal, partner, agent, director, shareholder, employee, or otherwise in any business which is in competition with any part of the employer's business in which you were actively involved during the course of this employment during the twelve months immediately preceding the termination of this employment. ' - 这个条款我是否违反了，还有一些类似的各种条款，如果是我作为competitor的话，有些条款我都违反了。但是这些条款是否可以拿来做法律依据那？