Trial Procedure under the YCJA
It is absolutely essential that your lawyer seek every bit of disclosure he or she can from the Crown and the police. Your lawyer needs to get witness statements, police videos, officers' notes, and Crown expert reports. Sometimes the witnesses have given video statements. Sometimes the co-accused young persons have given video confessions. Sometimes as a lawyer, I need to bring third party records applications to get the disclosure I need.
You can read more about disclosure by studying the R. v. Stinchcombe case in the Supreme Court of Canada.