Only if they have been released by EP . And as we know they had refused to release a lot of the information . Their reasons were given in a reply to Bambergate.
There appeared to be a lot of material missing in relation to a case I was familiar with, the police certainly hadn't disclosed anything in relation to the burglary that took place on the same night nor regarding the interview under caution in relation to the other lad who had also burgled. There appeared to be quite a lot missing. There were also disclosures made regarding what a lot of believed were alternative viable suspects and the serious organised crime squad....
All I'm suggesting is don't take JB's word for anything. There will be a list of all statements disclosed somewhere. There will most probably be witness statements not disclosed but if JB and his team didn't ask for these pre-trial he obviously won't have them.
However if there are statements missing which he believes can prove his innocence , the CCRC would have seen them and would have disclosed them if they could help him.