Again, you are applying today's standards to line-ups conducted over 40 years ago. Further, even had the Dallas police attempted to fake cuts and bruises, you and other conspiracists would likely claim that the faking was imperfect, and that that fact made it obvious to the witnesses that the other men were decoys. The point is, no line-up can ever be absolutely perfect; therefore, the questions to be considered are a) by the standards of that jurisdiction at that time, were the line-ups reasonably fair? and b) what are the chances that the imperfections actually caused all the witnesses to misidentify Oswald?

What is common sense now was still common sense 40 or more years ago. And most of today's standard lineup procedures are nothing more than writing down on paper the standard practices for conducting a lineup as unbiased and impartially as possible. More on that later.

What myself or "other conspiracists would likely claim" is a straw man argument, period.

I haven't uncovered Texas Criminal Code procedures for that time as yet, so I don't know what was standard practice for lineups, if it existed. But I don't see how it would have been considered a "reasonably fair" lineup procedure in Dallas, or Texas, or any other state, whether in 1963, 1943, or 1923.