YOU SAID:

One time I was taken into custody for bears

INTO JAPANESE

私はクマのために監禁されました

BACK INTO ENGLISH

I was confined for a bear

INTO JAPANESE

私はクマに閉じ込められていました

BACK INTO ENGLISH

I was trapped in a bear

INTO JAPANESE

私はクマに閉じ込められました

BACK INTO ENGLISH

I was trapped in a bear