Well that contradicts your earlier post where you said they just present the evidence as given - but we'll put that aside.
So if they are responsible and accountable for ensuring the evidence is reliable and that evidence is later shown to be unreliable are they not still accountable and responsible for that failure? Because if they are not then they aren't really accountable and responsible in the first place.
What evidence were they given that you find was so compelling that are you willing to defend the CPS without question?
Jesus talk about misrepresentation. Its not contradiction to summarise the main duty and then because someone is playing dumb, have to expand the comment further.
I further broke down in order to try to get to the crux of what your trying to say and question as you seem very confused as to what the CPS undertakes.
Sometimes in past miscarriages of justice some fingers are pointed at the CPS, but generally when there are cases of made up/false evidence the target, rightly, moves back to those presenting it.
I am NOT defending the CPS without question, again do not try to lower me to your base level of everything being some simple binary topic/state. I am saying that on balance of probability, and history will confirm this, the majority of the cases the CPS undertakes are not dismissed because of lack of evidence/robust evidence.
In fact most argument is the opposite that they quite quickly dismiss potential prosecution based on not having almost certain victory in sight. See rape cases in recent years.
If an organisation has a long and detailed history (as evidenced by limited amounts of false convictions within our system, especially ones that THEY were at fault for) then I will go with that evidence of a department far more likely than not having met the standards and expectations that any
REASONABLE person would place on them.