First of all, the lawyer's practice scope is "to apply for bail pending trial for arrested criminal suspects". The meaning of this sentence is that lawyers apply for bail pending trial on behalf of criminal suspects who have been issued with the "arrest decision", not as a guarantee;
Secondly, during criminal detention or after sentencing, it does not belong to the scope of lawyers' application for bail pending trial;
Third, if you apply for bail pending trial on your behalf, the lawyer must sign an agency contract with you, affix the official seal of the law firm, negotiate fees within the fee standard approved by the price, and issue a formal bill of fees, otherwise it is a private case, and the law firm will not bear any problems.
In addition, Article 64 of the Regulations of the Ministry of Public Security stipulates that recidivists, principal criminals of criminal groups, criminal suspects who evade investigation by means of self-injury, crimes endangering national security, violent crimes and other serious crimes shall not be released on bail pending trial. Article 38 of the the Supreme People's Procuratorate Rules stipulates that criminal suspects who seriously endanger public order and other criminal suspects with bad nature and serious circumstances shall not be released on bail pending trial.