調ちょう査さ中ちゅう

expression, noun which may take the genitive case particle 'no'

under investigation; being investigated

Used to indicate that something is currently being examined or looked into, often in formal or official contexts.

• その事じ件けんはまだ調ちょう査さ中ちゅうです。

  The case is still under investigation.

• 調ちょう査さ中ちゅうの事じ項こうについてはお答こたえできません。

  We cannot comment on matters that are under investigation.