The court may hear and determine such cases according to the course of equity, and may grant writs of injunction whenever the same are necessary to prevent fraud or injustice.
RSA 498:2
RS 171:6. CS 181:9. 1855, 1659:12. GS 190:1. GL 209:1. 1885, 87:1. 1887, 77:2. PS 205:1. PL 317 :2. RL 371:2.