Delved through the court records.
When you jump into researching the question of global warming, this is an example of a situation where you delve into the topic.
When you dig around in your purse to try to find your wallet, this is an example of a situation where you delve into your purse.
The explorers delved into the forest.
Origin of delve
- Middle English delven to dig from Old English delfan
From American Heritage Dictionary of the English Language, 5th Edition