I'm also from Dewsbury, but have since moved to nearby Huddersfield. I echo what Discogeek has to say.
Dewsbury has changed enormously since I was growing up in the 80's. It was once quite a vibrant town but there is nothing left, there. Pockets of different ethnic groups live in certain areas and do not mix. My parents still live quite near to Saville Town (3 miles away) and while once, I as a white person would happily walk around there, I now feel uncomfortable in the local supermarket.
It is a real shame. There are extremes on both sides. The BNP has always been rife in Dewsbury. Indeed, there are annual marches!
The sharia court (housed in an old pub) is a worrying development for many people.
Huddersfield is much more gelled, people seem much more accepting of one another.
My fear is that this is not the last we hear of Dewsbury regarding things like this.