現行 げんこう はん逮捕 たいほではありませんでした
genkōhan taihodewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 現行犯逮捕

1. Was not a citizen's arrest.; Was not an on-the-spot arrest.

Past/Perfective
Negative
Polite
Formal Register