In the event of a decision to interrupt the operation or at the end of the period set by the decision authorising the infiltration and in the absence of an extension, the undercover agent may continue the activities mentioned in Article 706-82, without being criminally liable, for the time strictly necessary to enable him to cease his surveillance in conditions that ensure his safety, without this period exceeding four months. The magistrate who issued the authorisation provided for in article 706-81 shall be informed as soon as possible. If, at the end of the four-month period, the undercover agent is unable to cease his operation in conditions that ensure his safety, this magistrate shall authorise its extension for a further period of up to four months.
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