As the saying goes, having connections in high places makes things easier.
What was originally a minor civil dispute, with a bit of compensation it could have been resolved, but that shrewish woman insisted on name-dropping some high-ranking official, vowing to get a medical examination at the hospital to make Xu Aiguo pay for his actions.
The police, of course, had no right to deny her request to go to the hospital for an examination; however, upon arrival, when she learned that she had to advance the examination fee, she immediately refused, throwing a tantrum on the ground, rolling around and accusing Xu Aiguo and his comrade-in-arms of ganging up on her, to cheat and bully a defenseless woman.
It was just a minor scratch, nothing more than a trifle, yet Wu Lingyu's mother didn't even demand a medical check after getting her hair pulled and face slapped, but this fuss made it impossible for both sides to back down gracefully.