Idaho Code § 19-313
In the case of an accessory in the commission of a public offense, the venue is in the county where the offense of the accessory was committed, notwithstanding the principal offense was committed in another county.
[19-313, added 1972, ch. 336, sec. 4, p. 986; am. 1986, ch. 289, sec. 13, p. 731.]