Why do the police use dogs for detective work?

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Why do the police use dogs for detective work? Answer: They can hear ultrasonic waves

Police use dogs for detective work because of their exceptional sense of smell, which allows them to track suspects and find hidden evidence; while their eyesight, speed, and trainability are also assets, their primary advantage is their olfactory abilities.

Question context

This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.