date,category,category_url,guidance,guidance_url,changes 2016-01-27,"Investigative interviewing",https://www.college.police.uk/app/investigation/investigative-interviewing,"Reference material – National policing position papers",https://www.college.police.uk/app/investigation/investigative-interviewing/reference-material-national-policing-position-papers,"Removal of link to Using body-worn video to record initial contact." 2015-11-12,"Investigative interviewing",https://www.college.police.uk/app/investigation/investigative-interviewing,"Reference material – National policing position papers",https://www.college.police.uk/app/investigation/investigative-interviewing/reference-material-national-policing-position-papers,"Addition of link to NPCC position paper on use of body-worn video."