I-485 Interview Criminal background for US Citizen (Sponsor)

[Dlee99]

Hi I was wondering if anyone here had an interview for I-485 and had a criminal history as the US Citizen. Did the immigration officer ask about your criminal history or do they just ask that for the petitioner of the green card? When we filled out the forms, it did not ask those questions for the sponsor. I checked online and I found that they primiarily focus on the person applying for the green card. Just wanted to confirm this.
I am going in to the Santa Ana field office.

Thank you