Audio event tags on rink-plant recordings sometimes have a start later than the end, or a span that leaves the clip. Which label-correctness approach should the tester pick?

Audio event tags with a start later than the end, or a span that leaves the clip, are structural label defects. Automated rule-based label checks catch those. Expert-only review, a Chapter 6 metamorphic derivation, and a reused bounding-box overlap scene miss that approach.