A few days in criminal detention can be released on bail pending trial.

The longest detention period in criminal proceedings is 14 days. Major suspects who commit crimes on the run, commit crimes many times or commit crimes by gangs can be detained for up to 37 days. During criminal detention, you can apply for bail pending trial, but whether you can get approval depends on whether you meet the conditions stipulated by law. The longest period of bail pending trial stipulated by law cannot exceed 12 months. If the public security organ considers it necessary to arrest the detained person, it shall submit it to the people's procuratorate for examination and approval within 3 days after detention. Under special circumstances, with the approval of the person in charge of the public security organ at or above the county level, the time for submission for examination and approval may be extended by 1 to 4 days. With the approval of the person in charge of the public security organ at or above the county level, the time for reporting for examination and approval can be extended to 30 days for major criminal suspects who have committed crimes on the run, repeatedly committed crimes or committed crimes in partnership. Legal basis: Article 125 of the Procedures for Handling Criminal Cases by Public Security Organs stipulates that if a detained criminal suspect is deemed to need to be arrested after examination, it shall be reported to the People's Procuratorate for examination and approval within three days after detention. Under special circumstances, with the approval of the person in charge of the public security organ at or above the county level, the time for submitting an arrest for examination and approval may be extended by one to four days. With the approval of the person in charge of the public security organ at or above the county level, the time for applying for examination and approval for arrest of a major criminal suspect who has committed a crime on the run, repeatedly committed a crime or colluded with each other may be extended to 30 days. The term "fugitive crime" as mentioned in this article refers to committing crimes continuously across cities and counties, or fleeing to other cities and counties to continue committing crimes after committing crimes at the place of residence; "Multiple crimes" refers to crimes committed more than three times; "Gang committing a crime" means that two or more people commit a crime together.