@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.