It is free and unlimited in its evaluation. As is well known, in Kentucky the trial judge is not permitted to comment upon the evidence or admonish the jury as to the consideration they should give to any evidence. Roberson, Sec. 488; Coyle v. Commonwealth, 122 Ky. 781, 93 S.W. 584, 29 Ky. Law Rep. 340; Postell v. Commonwealth, 174 Ky. 272, 192 S.W. 39; Huddleston v. Commonwealth, 269 Ky. 811, 108 S.W.2d 1010. When the court comes to appraise the probative worth of a dying declaration, we realize that, as an exception to the hearsay rule, the statement of a victim who expects to die is received on the ground of necessity in order to protect the innocent and prevent murder going unpunished (though it is received also when the exigencies do not make it necessary, Fuqua v. Commonwealth, 73 S.W. 782, 24 Ky. Law Rep. 2204), and because temptation to falsehood is presumably absent.