TASK DEFINITION: In this task, you are given a sentence in the Japanese language and your task is to convert it into the English language. In translation, keep numbers as it is and make it sentence case (capitalize only the first word of each sentence and noun).
PROBLEM: 法廷で彼らの逮捕の原因であったヘロインがデンパサール空港で逮捕された他の４名の体に巻きつけられて見つかったものと同じであったと判明した。

SOLUTION: The court found that the heroin they had been caught with was the same as that found strapped to the bodies of the four others arrested at Denpasar airport.

PROBLEM: 「極秘」部分があるが、こういった機密情報も今や全国の公務員やビジネス界で様々な役職の権限を与えられた人物に一瞬でばらまかれている可能性がある。

SOLUTION: With the "Secret" component in place, classified information can now be disseminated to authorized individuals at all levels of government and business throughout the country almost instantly.

PROBLEM: 主に問題となるのは、海底艦隊の入れ替えについてである。

SOLUTION:
The main issue is about the replacement of the submarine fleet.