To give JS keys at Broadmoor is not as it appears. Locked areas are centrally governed, as in prisons, and an electronic switch is released by a watching officer via CCTV to allow a key to be used. This is so prisoners/special hospital patients cannot overpower staff by taking keys to get out of locked zones. If a worker has been vetted and officially cleared, they might have keys that fit specific zones, but not all areas, and not the key that unlocks every area.
I noticed that the house JS was given was outside Broadmoor's perimeter, where the main building and entrance is approached through the gatehouse and has high fences. Like many prisons and the two other special hospitals, Rampton and Ashworth, there are lots of specially built houses, originally for staff accommodation, that have been adapted for use by volunteer organisations. To refer to JS as having been in charge at Broadmoor is nonsense. Probably self-promotion. I can envisage him arranging to sleep in that house to save more travel time when moving around the country, and exploiting any opportunities he created for himself. He epitomises the way sex offenders can groom people and the immediate environment so that all appears 'normal.' Look at Michael Jackson.
Yes, Jane, risk to children can be reported anonymously, and concern about children is assessed, always has been, and will depend upon the quality and detail of the concern expressed as to how far it is investigated. These TV personalities might well look uncomfortable. They could be remembering their own attitudes and behaviour back then, which might look iffy in the cold light of day.
There will be plenty of damage limitation propoganda being dispersed by individuals and organisations that have been involved. The papers are having a field day. It's not all going to be true. I take lots of it with a pinch of salt. JS will have operated with craftiness and guile, amongst professionals who would have said 'you have him on your ward but he's not helping out in mine.' He wouldn't have fooled everyone, but he did fool enough people to get what he wanted. Like a sex offender I worked with who once remarked 'if I target 100, I'm bound to get 1.' His lifestyle was so dodgy that people didn't see the wood for the trees.