If you are arrested for organizing gambling, you can't hire the same lawyer. Each person can entrust up to two lawyers at the same time. Lawyers can only defend one party, not several defendants at the same time.
Criminal detention on suspicion of gambling does not constitute a crime, and lawyers are not needed. If it constitutes a crime, you need to hire a lawyer. It can be decided whether to hire a lawyer in the investigation and calculation stage of the public security organ, the examination and prosecution stage of the procuratorate or the trial stage of the court according to the specific circumstances. Of course, the sooner criminal lawyers get involved, the better.