My case is very ordinary, Tier 2 working visa 5 yrs, ILR 7 yrs, now I would join UK citizen.
Review my previous 12 yrs in UK, it is exactly zero criminal matters, even don't have any minors like driving, speeding, CCJ, debt etc.
My question: when I online apply UK citizen, do I have to provide any certification of non-criminal certification?

Some solicitors said, better to provide. However online form, seems no option regarding that on the check list.

A few weeks ago, my new employer also carried out me a DBS check, and passed. But no any certification on my hand.
Thank you.