Records being discussed I think are notes/files of judicial committees. As far as I know there are no such official files on "inactive" jws. But there are publisher cards which contain limited information, name, address, phone #, other sheep/anointed, elder/MS/reg pio and the numbers they posted on their time slips are posted. One keeper of the cards told me that they kept them back for 8 years. They do keep these cards for inactive, df'd and da'd. The elders are directed by visit the df'd and da'd once a year as long as they aren't "belligerent." I remember one year that elder took the cards out of the "box" the CO checked over and the CO was not amused. They do put them in the back of the box labeling them as inactive, df'd or da'd. I don't know if the COs review the publisher cards any more.
Of course, the UK has their Data Protection Act which means they have their own way of dealing with this kind of information.