" The Fifth Amendment of the American Constitution enunciated this principle in the manner following: ". . . nor shall any person be subject for the same offence to be twice put in jeopardy of life or limb; nor shall be compelled, in any criminal case, to be witness against himself. . . . 738 Willis in his Constitutional Law, at page 528, observes that the phrase "jeopardy of life or limb" indicates bat the immunity is restricted to crimes of the highest grade, and this is the way Black stone states the rule : " Yet, by a gradual process of liberal construction the courts have extended the scope of the clause to make it applicable to all indictable offences, including misdemeanours.". . " Under the United States rule, to be put in jeopardy there must be a valid indictment or information duty presented to a court of competent jurisdiction, there must be an arraignment and plea, and a lawful jury must be impanelled and sworn.