State compensation is aimed at extended detention, and the evidence is insufficient, so it is not illegal to handle the case. At present, it belongs to "no prosecution for doubtful cases". There is no violation of the law in this case, so there is no such thing as a responsible person.
Judging from the incident between Huang Jing and Asustek, Huang Jing was indeed suspected of extortion, and the public security organ detained him for investigation.