In the absence of another legal basis to enable treatment, the presence of a representative of an association in a citizen’s interview with social services requires their consent. To the extent that it may involve the processing of special categories of data, it must be explicit. In any case, it is necessary to inform the citizen in advance about the aspects provided for in article 13 of the RGPD, especially with regard to the communication or disclosure of the citizen's personal data to the companion, due to being present at the interview.