Modifies penalties for offenses involving the sexual trafficking of children

HB 1142 replaces Missouri's existing laws on child sexual trafficking with new, stricter penalties. It creates two offenses: "first degree" for trafficking children under 12 (with life imprisonment requiring 30 years before parole eligibility) and "second degree" for trafficking children under 18 (with minimum 25-year sentences, increasing to life if force/coercion is used). The bill explicitly states that believing a victim was 12 or 18+ is not a valid defense. It directly affects individuals who recruit, transport, or profit from children in commercial sex acts, sexual performances, or explicit material production.