Cheers guys. It took a long long time to work out how to do it but when we realised the cameras wern't centrally linked for all the prison sites it all came together pretty quickly.. Althought it did feel pretty nuts doing a prison break in reverse!
The security eventually realised somthing was up but not sure to what extent.. so we've left it alone for a few months.
Putting the history together has been just as enjoyable too, there isn't anything comprehensive to pillage from so it really has been a proper research job, archives, books, newspapers, a friendly ex prison guard and a friendly ex con!
It's a bit bitter sweet sticking up here as this is pretty much the last bit of 'epic' our little island had to offer, for now.