Accusations against any on-sale or off-sale licensee may be filed with the department by the legislative body, or chief of police, of any city in which the premises in question are located, or if the premises are in unincorporated territory, then by the board of supervisors, or the sheriff, of the county, requesting the suspension or revocation of any retail license. Upon the filing of the accusation, the department shall provide for a public hearing thereon within the county in which the premises are located and determine whether or not the license should be revoked or suspended. Whenever the local legislative body, the chief of police, or the sheriff, certifies that the public safety, health, or welfare requires an immediate hearing of the accusation, the public hearing shall be held within 60 days after the filing of the accusation with the department.