CAT/C/NOR/CO/8 (b) Ensure that there are sufficient numbers of prison staff with the required level of competence; (c) Refrain from any discriminatory detention measures against foreigners in detention facilities outside its territory. Follow-up procedure 33. The Committee requests the State party to provide, by 18 May 2019, information on follow-up to the Committee’s recommendations on prolonged detention in police cells, mental health care for prisoners and the situation in immigration detention facilities (see paragraphs 14, 20 and 28 above). In that context, the State party is invited to inform the Committee about its plans for implementing, within the coming reporting period, some or all of the remaining recommendations in the concluding observations. Other issues 34. The Committee invites the State party to ratify the core United Nations human rights treaties to which it is not yet party. 35. The State party is requested to disseminate widely the report submitted to the Committee and the present concluding observations, in appropriate languages, through official websites, the media and non-governmental organizations. 36. The Committee requests the State party to submit its next periodic report, which will be its ninth periodic, by 18 May 2022. For that purpose, and in view of the fact that the State party has agreed to report to the Committee under the simplified reporting procedure, the Committee will, in due course, transmit to the State party a list of issues prior to reporting. The State party’s replies to that list of issues will constitute its ninth periodic report under article 19 of the Convention. 9