I recently encountered fraud for the first time. At my microfinance company, a man tried to get a loan using forged documents. He provided a passport that was indistinguishable from the original, and we almost got caught. Fortunately, one of my employees noticed that the letters in the passport were printed a little crooked and immediately denied the man a favor. Now we know that this can happen more than once, and we are thinking about making it mandatory for our organization to check documents for authenticity. Can you please tell me what methods are available for this?