Is it useful to get a lawyer after being summoned 12 hours?

Yes According to the information in the Lawyers Law of People's Republic of China (PRC), a lawyer can be invited during the summons. The public security organ may summon or force the criminal suspect, and the duration shall not exceed 12 hours, and the special circumstances shall not exceed 24 hours. A criminal suspect may be detained and sent to a detention center within 24 hours, and a lawyer may be appointed as a defender from the day when the criminal suspect is interrogated for the first time or compulsory measures are taken.