(2) how many people were given a (a) custodial sentence and (b) fine or conviction for the offence of carrying a knife in 2007.
There are no specific offences for:
carrying and using a knife in a violent attack
carrying a knife in a violent attack.
For offences of wounding it is not possible to tell if a knife was used without going through court records. This would incur disproportionate costs to answering this question.