Once. Linyi City Human Resources and Social Security Bureau's announcement on the public recruitment of police auxiliary personnel by public security organs shows that the annual recruitment of auxiliary police officers is held in September every year, and the recruitment is organized according to the principles of openness, equality, competition and merit. The basic requirements for recruitment are: male height 1.70 meters or more, female height 1.60 meters or more, binocular corrected vision not less than 1.0, good health, good facial features, no disability, tattoo, hard of hearing, color blindness, stuttering, etc. Under the same conditions, the spouses and children of on-the-job public security police can give priority to the graduates of police schools or political and legal colleges.