The person you choose to look over your statement should be checking everything. Along with grammar and spelling errors they should check the tone of the paper, the flow of the paper, and the overall style of the paper. So, it makes sense that the person you choose to look over your admission essay should be well tuned in writing. Additionally, they should also be able to let you know if there is anything they feel you should omit or add. Once you have made the changes they recommend, then you should have them re_read your personal statement to ensure quality. If you want to be ultra_safe, then have yet another set of fresh eyeballs look over your revised personal statement.
The Universities and College Admission Service (UCAS) mediate all applications made to universities in the UK. You cannot apply directly to a UK university and therefore all applications must be made via UCAS using the dreaded UCAS form. This form requires you to enter your personal details, your course choices and most important of all your personal statement. Your UCAS personal statement is your opportunity to sell yourself to admissions tutors and convince them they should offer you a place at university over the 100’s of other applicants.