I need some legal advice before taking this matter to a law firm. My brother runs a private company, where he has several staff members working in different profiles. One of them was a Bangladeshi, who worked as a consultant for a while. He left the country a few months back. One of the staff member made an administrative mistake and payed 20000 USD in addition to what he was supposed to be receiving in the final tranche. It was a huge loss to the firm, but they did not discover the mistake until the recent audit. The company reached out to the ex consultant through his personal e-mail twice, but no response. His FB and linked in profile shows he is out of Bangladesh, and on a roving job in Africa (travelling to different countries). His mobile number is not available. Not sure whether his home address is correct or not. We know the employer has the right to sue the ex-employee, even though this was clearly the mistake of the employer. This isn't fraud or crime. But I understand the company can take actions under civil law on the clauses of unjust enrichment. But, how is that possible if his whereabout is unclear? They were late to identify the error, and possibly the ex-consultant wasn't aware of this overpayment as he works for many multi-national companies and receives payments. Perhaps he doesn't have access to his Bangladesh bank anymore - Not sure, as my SL bank froze my account for inactivity for a year. Some times back, one of my ex-employer overpaid me, but I reached out to them after a while before they traced this down. But in this case, if the employee isn't corporative, what are the chances to recover the money???? Has such matters happen frequently in India or US? if it is for a large company it will be OK to write off the amount, against charging the ex employee owing to the hassle and expenses of approaching a law firm. But for smaller firm, this is a huge money. What do you think guys?