If the check was mailed out to the address your husband told the employer to mail it to, then the employer's liability or resposibility for the check basically ended when the employer put the check in the mail. If someone then intercepted or stole it, the employer is not responsible for that. Since the check was cashed after being mailed out, the employer has no more obligation to re-pay your husband than it would have if he had cashed the check and then had the money stolen from him. Your husband needs to file a police report and hope the thief is found, to get the money from him or her.