予防 よぼう拘禁 こうきんじゃなかったです
yobōkōkinjanakattadesu

Noun
Desu Copula

The polite, past negative form of 予防拘禁

1. Wasn't preventative detention.; Wasn't held in preventative custody.

Past/Perfective
Negative
Polite
Casual Register
Law