What did Alison Saunders and Malcolm McHaffie know of the "corrupt relationship" between Deborah Glass and the Metropolitan Police Service?

If you haven't already read these recent posts I suggest you read them in this order, better to understand the content of this post:

1. Why did Keith Wallis plead guilty to a crime he didn't commit? 
2. Why did the Crown Prosecution Service charge Keith Wallis with a crime he didn't commit? 

[in process of completion]