577. Assisting the investigation.

The fact that a defendant has assisted a police investigation may serve to mitigate his sentence, although the assistance must be given sufficiently early to be potentially useful1. The amount of the reduction will vary from one-half to two-thirds depending on the circumstances2. Where a defendant pleads guilty and gives truthful evidence against an accomplice, he will be given a greater discount in his sentence than if he pleads guilty but fails to give such evidence3. The Court of Appeal may review cases where a defendant pleads guilty and receives credit for supplying information but the value of that