When applying for a job you will more than likely be asked to provide at least one reference? This will usually be your current and / or previous employer. The idea behind a reference is to give the prospective employer an idea of what type of employee you are.

People can refuse to give you a reference but usually will not unless they have a valid reason not to. A reference can be as long or as short as they like and sometimes is completed over the phone. The potential employer will also be looking to check that you worked where you said you did for the period of time stated on your CV and doing the job you said.

If you are worried about obtaining a reference from your current employer, you will need to explain this in an interview or when applying for the job and offer an alternative contact.