New measures also target junk food ads and aim to halve childhood obesity by 2030 in England.
Police officers "were confronted with up to 100 youths" when they were called to the attack.
The prince embarks on the first official royal visit to Israel and the Palestinian territories.
Adam Chadwick was killed in a struggle with three masked men outside a house in Harehills, Leeds.
Scottish fruit and vegetable producers draw up new plans to support the industry through to 2030.