When the evidence gathered in the course of proceedings concerning a crime or offence punishable by imprisonment reveals that a person who must be heard freely pursuant to article 61-1 is the subject of a legal protection measure, the officer or agent of the judicial police shall notify the curator or guardian by any means, who may appoint a lawyer or request that a lawyer be appointed by the President of the Bar to assist the person at the hearing. If it has not been possible to notify the guardian or curator and if the person heard has not been assisted by a lawyer, the statements made by this person may not be used as the sole basis for his conviction.
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