@spendius,
												sorry spendius - but I automatically translate to American, having lived there for forty years.  When I hear quarter to five, my brain says, 'quarter of five'- when someone says 'coach' my brain says 'bus', when someone says 'biscuit' my brain says cookie - so maybe I did the same thing with frame, although
actually, now that I think about it,  I haven't heard 'fitted up'.  I've heard, 'Stitched him  up'  'Dropped him in it'  'Put him in the frame'  'Dropped him in the ****'...and various others but not 'fitted up'.  
But I work in a southern prison - maybe that's a regional or northern term.