I work for Walmart stores Inc. in the LOSS PREVENTION division and last week I was terminated because I used a customer instead of Walmart associate as a witness to sit in with me on a shoplifter apprehension interview. The very next day I was rehired but written up and demoted. In Walmart policy it states that you must have a witness of the same gender that is apprehended in the office for the shoplifter interview. It does not say anywhere in the policy that it must be a Walmart associate. To me this is defamation of character. What do you think? And what should I do to get my position back?