Forensic computing Research Project

how about setting up a scale of confidence and method establishing how sure one is that a piece of code has been stolen
a) using source
b) using suspect binary and stolen source

the research project is for a bsc

Okay.  You are looking for a better researched topic, less cutting edge?  How tied to cloud computing are you?

I don't know what topics would be have already been covered in a forensics program, but:

Have you considered topics in counter forensics techniques and recognizing them?
Alternate procedures for collecting evidence from newer technologies: eBooks, iPads, digital cameras.

I have not done much research on Cloud computing, The idea i think is ok but struggling with the bit of what i should concentrate on and how i should take it on. I mean what kind of methods should i use to gather research

In that case, it might be worth picking one of the cloud computing systems, and explain that you are doing your BSc Research project in computer forensics on forensic methods appropriate in their environment, with an eye on how they might already be doing things that would protect customer data and assist law enforcement in the event of an investigation.  I suspect if you presented it as something they could use in their marketing or to lower the security concerns of potential customers, someone in the organization will doubtless bend over backwards to help you, possibly even providing an more detailed subtopic to concentrate on.  You may have to make contact with a couple organizations before you find one really willing to help.

In cloud virtual exchange servers - are they as secure as onsite physical boxes?

here is an idea related to cloud forensics: forensic tools that examine the file image of a virtual server, completely non-intrusively.

answerd.