That is a good question. In fact, each month some 600 reports are generated within the system. One person in my office has been given the task of checking the system regularly, to determine where errors might occur. In order to be more efficient, we can send a letter to the public office holder and determine whether there is more than one entry for a given person.
That is quite new. After about four months, we will determine if we wish to change our procedures. We are therefore open to suggestions.