What is the police force like in the town?

What do you mean "police force"? The town that Ender lives in is very stable like any other town. But, in the second book of the series, Ender's Shadow, this story takes on about a 4-year-old boy named 'Bean'. Bean's real name is Julian Delphiki. Bean is a genius with a magician's ability to zero in on his enemy and exploit his weakness.

I hope you can find the difference between Ender's Game and Ender's Shadow when you read them both.

It's an okay town. Are you trying to mention Amsterdam in Ender's Shadow? That town is run down and has a bad police fforce.