Method for checking the data of a database relating to persons

A method of automatically verifying certain items in a database relating to a set of people, and including for each person a plurality of data items such as age, first name, gender, a portrait, fingerprints, or other biometric data items, the method incorporating for each person:

• determining a plurality of correlations associating certain data items of that person with one another;
• for each data item being verified, calculating a confidence score depending at least on a first correlation of the data item being verified with a first other data item for the person and on a second correlation of the data item being verified with a second other data item for the person, wherein a value of the first correlation is determined dependent on a distance of a point defined by the data item being verified and the first other data item for the person with respect to a mean curve defined based on the data item being verified and the first other data item for the set of people, and a value of the second correlation is determined dependent on a distance of the point defined by the data item being verified and the second other data item for the person with respect to the mean curve defined based on the data item being verified and the second other data item for the set of people;
• and
• a step of comparing the score with a threshold value in order to determine whether the data item being verified is or is not valid.