### Chinese: 在进一步调查中，警方发现黄某某曾于7月13日17时07分通过乃吉沟检查站。
### English: During further investigation, the police was finding that Huang had passed the Naijigou checkpoint at 17:07 on July 13.

### Improved English: During further investigation, the police found that Huang had passed the Naijigou checkpoint at 17:07 on July 13.
