罚

Top-side net radical - the indexing radical, the flattened-overhead form of 网. Pictures a net cast over from above. Anchors the imagery of 罚: an offender caught in the net of the law. Same family: 罪 (crime), 罗 (catch in net), 署 (office), 罢 (cease).

Bottom-left speech radical - the simplified side-form of 言. Represents the formal verbal pronouncement of the verdict. Combined with 罒 above, the picture is 'caught in the net + sentence read aloud'. Simplified from 言 in the traditional 罰; the modern 讠 is the 2-stroke shorthand.

Bottom-right knife radical - the standing side-form of 刀. Represents the punishment itself: historically corporal penalties were dispensed with blades (tattooing, amputation, execution). The full ideograph reads 罒 (caught) + 讠 (sentenced) + 刂 (penalty carried out) - a three-stage compound for 'punish'.