Refer to:
https://www.gov.uk/settled-status-eu-ci ... d-to-apply
Quote from the web site:
If you have criminal convictions
If you’re 18 or over, the Home Office will check you have not committed serious or repeated crimes, and that you do not pose a security threat.
You’ll be asked to declare convictions that appear in your criminal record in the UK or overseas.
You do not need to declare any of the following:
convictions that do not need to be disclosed (‘spent convictions’)
warnings (‘cautions’)
alternatives to prosecution, for example speeding fines
You’ll also be checked against the UK’s crime databases.
You’ll still be eligible for settled or pre-settled status if you’ve only been convicted of a minor crime.
You may still get settled or pre-settled status even if you have other convictions. This will be decided on a case-by-case basis.
If you’ve been to prison, you usually need 5 years’ continuous residence from the day you were released to be considered for settled status.