Rattle,
IF you had been in the area or, IF you had been in the aircraft, then you would have been fully aware of what the TRA had been established to “protect”. It would seem then, that you, or perhaps someone else on board the aircraft, decided, possibly for commercial reasons, correctly plotted or not, it did not apply to you. IMHO, it smacks a bit of bl00dy mindedness.
As I understand it, there was another aircraft, possibly a Gazelle, even lower than the Police aircraft that day who over flew the site, not once but three times who, apparently, didn’t know it was there at all.