For
Pinsent Masons application, is it advised to include a covering letter?
Perhaps
@Jessica Booker can advise on this. The application system states 'If you are applying for a position based outside the UK, it is mandatory that you upload your CV and cover letter here. If you are applying for a UK-based position, you may wish to attach your CV if you feel it contains information about you which is not currently included in your responses and is relevant to the role.'
Sometimes this means that the system has that option there by default but it will not actually be read for certain applications - I would probably upload one myself anyway for peace of mind. It may be worth e-mailing graduate recruitment to ask whether they would read CVs/Cover Letters that are uploaded.