Alaska constitution
Article I: declaration of rights
Section 8

No person shall be held to answer for a capital, or otherwise infamous crime, unless on a presentment or indictment of a grand jury, except in cases arising in the armed forces in time of war or public danger. Indictment may be waived by the accused. In that case the prosecution shall be by information. The grand jury shall consist of at least twelve citizens, a majority of whom concurring may return an indictment. The power of grand juries to investigate and make recommendations concerning the public welfare or safety shall never be suspended.