Do I need a cover letter to support my job application?
If you are applying direct to a new employer for a job – Yes
If you are applying to a recruitment agency for a job you have seen on a job board or website – No
Why are these answers different?
If you are applying to a new employer, enclosing or attaching a cover letter is professional and will present you as an articulate person who presents themselves well.
If you are applying to a recruitment agency, a cover letter as a rule is not required because it is not forwarded on to the employer.
All information to confirm your experience, training and qualifications and any other authorisations relevant to the post should be in your CV only.