I know some people in that department and I took electives in there. What do you want to know?
The BSc is brand new, prior to this year, it was an MSc only course.
A great many postgrads read Criminology as their first degree. There is some criminology in the course, but they are very keen to point out that it isn't a lot about criminology / psychology, although that plays a part in some parts of the courses. Criminology is about why people commit crime. The Crime Science department is a scientific department about what to do about crime. Some people branch off and do a Forensic science course, others take the Counter Terrorism course. A lot of people do crime mapping and things like hotspot analysis.
It is very much on the sciency end of social sciences, and I wouldn't pretend that the BSc course looks at all like an engineering course. It's much more data driven than Political Science. If you want to learn essentially Psychology and about criminal behaviour - you should read Criminology. Crime Science is quite different. From what I know of straight Crime Science (rather than the Terrorism or Forensic MScs), I would say it's more like Crime Geography.