(1)Even if you are working only on suspicion that an ex-employee is behind the damaga,you can explain why you believe the ex-employee may be the bad guy.Research security companies and know how to file a restraining order.
(2)As the employer,you may ask an employees to hold religious conversation around fellow co-workers who find it troublesome and could file harasment or hostile work evirnment claims.
(1)甚至你只是怀疑一个前雇员(对公司)有危害,你可以解释为什么你觉得这个前雇员是个坏人。然后咨询保安公司要怎么提出一个限制令的申请。P.S.那个damaga是不是应该是damage啊?我按照damage翻译的。(2)作为用人单位,你可以要求一个员工在办公室里停止他的宗教言论。如果有人觉得这些言论很麻烦,可以就骚扰或者敌对的工作环境提出赔偿申请。P.S. 个人觉得在fellow和 co-workers之间应该是断句了。前面的ask an employee(s)中的s是错误。Harasment应该是harassment,evirnment应该是enviroment。这些可能因为不是正式的文件之类的,所以被人简写了。两句中的file