Idaho Code § 31-404: Signing of petition — Qualifications of signers — Petition open to inspection.

Each person signing such petition shall write, or cause to be written, opposite his name the name or number of the precinct in which he resides; and no person shall be entitled to sign such petition unless he is, at the time of signing, a qualified elector of the county. Said petition shall, after filing as herein provided, be open to the inspection of the public.