Any public official or authority who, outside of the cases permitted by law or regulations, carries out, either personally or through an intermediary, a permanent or occasional professional or advisory activity, under the supervision or at the service of private entities or individuals, in a matter in which he or she must or has intervened by reason of his or her position, or in matters that are processed, reported on or resolved in the office or management center in which he or she is assigned or on which he or she depends, shall incur the penalties of a fine of six to twelve months and suspension from employment or public office for a period of two to five years.