Final answer:
The case that led to recommendations for improving police lineup identifications in Canada is R. v. Sophonow.
Step-by-step explanation:
The Canadian case involving poor police techniques in collecting eyewitness evidence that led to a set of recommendations for conducting lineup identifications is R. v. Sophonow. This case highlighted the flaws in police lineup procedures and led to important reforms in the way lineups are conducted to reduce the risk of misidentification. These changes include using blind photo lineups, where the administrator doesn't know which photo is the suspect, and recommending judges to inform jurors about the risks of eyewitness misidentification or even suppress eyewitness testimony deemed unreliable.