He shall cause the laws and regulations of the city to be executed, and shall exercise a general supervision over the conduct of all subordinate officers and cause their violation or neglect of duty to be punished.
RSA 45:8
1846, 384:9. 1855, 1699:12. GS 41:7. GL 45:6. PS 47:6. PL 51 :8. RL 63:8.