Pet detective services grow in China as cat and dog ownership rises, and experience counts more than hi-tech tools, says a veteran of the business squib

It could have been a scene from a Sherlock Holmes novel; two intrepid sleuths arrived at an apartment building, one with a flashlight in hand, the other with a device for finding their charge. They began scanning the place for life.Soon enough, they have covered the entire building, marking where they found hair and prints. Diligently, they have inferred the movements for the past two days of the fugitive they were tracking.Within two hours, they close the case. Hot on the trail, they spot theā€¦
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