The answer to this is simple. Make the "on-site" interview on-site again. * You can rule out many types of cheating, which is becoming a more expensive proble

The answer to this is simple. Make the "on-site" interview on-site again. * You can rule out many types of cheating, which is becoming a more expensive problem. * You can get many more details for the 'culture fit' in person. * If you purchase airplane tickets for the candidate then you have built in identity verification via TSA. * It demonstrates a higher degree of buy-in before the final interview from both parties.