Patrol Spotting

[mudski]

Its one 50 odd mm bar...held together with scaffolding clamps by the look of it..im with you on its "structural integrity"

Looking at it again. I can see why maybe they have the bar there. It looks like the roof rack is used a lot and by the scuff marks across pole on the rear guard. Its used as a step maybe to help with roof access? Idea's man there! Plus it looks like the rack is made from the same material.