신고는

as for the report

→ 신고
phrase Rare #20,240
as for the report 는 marks 신고 as the topic and can add emphasis or contrast. In a question, the natural English translation may simply be “Did you report it?”
KO: 경찰에 신고는 했어요?
EN: Did you report it to the police?

교통사고 신고는 없었대

They said there were no reported traffic accidents.

— 히든 (2005)

신고는 했니?

Have you reported it?

— 불릿 트레인 (2022)

신고는?

What about filing a report?

— Space Sweepers (2021)