Do patrol prevention and control members belong to the police?

In the second half of last year, my son was admitted to the patrol prevention and control brigade of the enterprise, and he joined the class of 1 1 in October. He is indeed a cadre, not the same as the one recruited. His salary is ok, with a monthly subsidy of more than 5000 yuan. The rental fee of others from 15000 to 18000 a year will not be known until one year later. There is also old-age insurance, but it will be greatly improved.