The proportion of spot checks by the special offices exceeds 2%. By querying People's Daily Online. The proportion of spot checks by special offices exceeds 2%. The Special Office is the special office of the Ministry of Commerce of the People's Republic of China in Shenzhen, which was established on May 15th, 1988. Shenzhen Special Office is an agency of the Ministry of Commerce stationed in Shenzhen to exercise some government administrative functions. It is led by and accountable to the Ministry of Commerce. Therefore, the proportion of spot checks by the special office exceeds 2%.