By law in most states the former employer can only confirm dates work, reason for leaving (were the fired for cause, laid off, or quit), position, and I believe pay. They cannot talk about the stalking behaviors, unless there were a legal record, like an arrest or restraining order, in which case it would not be slander, as it's provable. People you list as references can say more because you have given them permission to say more, but simply verifying work history with employers, you would not get that information. People often confuse verification of employment with references.

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