Yes, they certainly are, along with a host of other info. I get it, though. Their job is and was to collect evidence and pass it on to the Crown. The Crown looked at (some of) the information and laid charges in the Prof Dyck case, on its own.
I think it's unfortunate for the families of Chynna and Lucas that charges were not laid before the two were found dead. If it were me, that would have provided a bit of closure. In my experience, families of crime victims really want information, more than anything. Some want it all. I am one of those people and I tend to remain in contact with survivors/victims who are the same way. But not everyone is like that.
I assume that if the suspects had been formally charged, in court, they would have heard their charges and their attorney would have had the evidence, which would have been filed with the court. Since it never got to that stage, I don't know how Canada treats this, next. But in most of the US, since no charges were laid in the Chynna and Lucas murders, there would be no court records to ask for and acquire (there's a fee, but court records, unless sealed by a judge - which is rare - are available to all). It's usually the media who grabs them.