When you say criminal damage can get you 3 months you mean items of lot more value and level of damage. Criminal damage to an individual book is not worth 3 months and I don't think ever would be without the additional factors. The judge stated: Sitting at Carlisle Magistrates' Court, District Judge Gerald Chalk described it as a case of "theatrical bigotry". "You went out to cause maximum publicity and to cause distress." After sentencing, Insp Paul Marshall, of Cumbria Police, said: "This incident was highly unusual for Cumbria as we have such low levels of hate crime in the county." So there was a hate crime aspect to this hence the long scentence. If there was no mention of the koran other than in the bbc report then fine but it being a koran made all the difference as shown by the police and judges statements. On another forum someone found (although I can't confirm) that is was 30 days for burning the stolen book given that he had past offences and 40 days for the hate crime aspect.