ARREST, BY WHOM AND HOW MADE
19-604. When private person may arrest. A private person may arrest another:
1. For a public offense committed or attempted in his presence.
2. When the person arrested has committed a felony, although not in his presence.
3. When a felony has been in fact committed, and he has reasonable cause for believing the person arrested to have committed it.
[(19-604) Cr. Prac. 1864, sec. 137, p. 229; R.S., R.C., & C.L., sec. 7541; C.S., sec. 8727; I.C.A., sec. 19-604.]