Annual Report 2014 of the National Preventive Mechanism 379. Likewise, these persons should be permitted, adopting if appropriate any security measures considered appropriate, to remain outdoors at least one hour per day, which would allow them to carry out physical activity, enjoy the benefits of solar radiation or, at least, breathe fresh air for that time. These measures should be a priority in the case of minors and pregnant women. Children’s park at the T1 380. The video-surveillance at these facilities should meet the policy repeatedly explained by the NPM in its reports, but the installation of cameras in areas for separation or isolation of these persons should be a priority. 381. It is considered necessary for such cases of separation or isolation to be recorded in writing. In addition, the extension of internment by the court authority of those persons who remain in the facilities for more than 72 hours pending refusal of entry should be entered on a record book, as provided for in article 60 of Organic Act 4/2000. 382. Interviews with potential victims of human trafficking should be held at adequate facilities preserving their privacy. Interviews room at the T4 120