Article 7 of Chapter 2 of Part 2 of Division 4 of the Labor Code deals with city police and firemen, sheriffs, and others in compensation scheduled. Section 4850 provides that, whenever any person who is employed on a regular, full-time basis, and is disabled, whether temporarily or permanently, by injury or illness arising out of and in the course of the person’s duties, the person is entitled, regardless of the person’s period of service with …