POLICE have uncovered a trail of mismanagement and inadequate supervision in a review of the force's vice and gaming operations. Interim findings of a study of Special Duty Squad operations in Mongkok are understood to suggest more rigorous inspection of police at work is needed. The study was prompted by the arrest last year of 10 officers allegedly protecting vice establishments. Lax command has been blamed for the apparent emergence of corruption in the policing of street-level prostitution. The review, undertaken by the service quality wing set up last year to evaluate internal performance, has highlighted a number of areas which urgently need an overhaul. The report is unlikely to recommend the scrapping of the specialist policing of prostitution. It is not known whether the review will extend to activities of the Special Duty Squad in Wong Tai Sin, where 16 officers were arrested in raids this week by the Independent Commission Against Corruption (ICAC). These raids also were prompted by alleged protection of brothel keepers. The ICAC said yesterday no further arrests had been made relating to the Wong Tai Sin operation. More than 300 officers were involved in swoops on 11 vice establishments in San Po Kong and searching the homes of 24 police officers. Arrests, including 27 civilians, totalled 43. A police spokesman said yesterday that Commissioner Eddie Hui Ki-on had vowed to eradicate corruption in the ranks.