CAT/C/68/D/817/2017 recurrence of the violations, while always bearing in mind the circumstances of each case. 13 The Committee notes that, in the present case, the complainant has remained in solitary confinement for a prolonged period of time, without an objective investigation into the circumstances of his isolation, and the fact that the conditions of his detention have not been eased has caused him unnecessary suffering. The Committee therefore finds that the complainant’s rights under article 14 of the Convention have been violated. 8.7 In view of the foregoing, the Committee does not consider it necessary to examine separately the complainant’s claims under articles 12 and 13 of the Convention. 9. The Committee, acting under article 22 (7) of the Convention, is of the view that the facts before it disclose a violation of articles 16 and 2 (1), read in conjunction with articles 1 and 11, and of article 14 of the Convention. 10. In accordance with rule 118 (5) of its rules of procedure, the Committee invites the State party to inform it, within 90 days from the date of the transmittal of the present decision, of the steps it has taken to respond to the above observations. Such steps must include the return of the complainant to the group regime in a prison closer to his family, the opening of an impartial and thorough investigation into the complainant’s allegations, and the provision of full, adequate and fair compensation to the complainant for all the violations of the Convention that have been found and the consequences that they have had for the complainant. 13 GE.20-00011 Ali v. Tunisia (CAT/C/41/D/291/2006), para. 15.8. 11