inquest, in quest

Inquest or inquest ( one word ) means a legal hearing to determine the cause of death of a person--
The coroner thought the death seemed suspicious, and called for an inquest.
At the inquest, the jurors decided that the man's death was accidental.

In quest or in quest ( two words ) means ( in ) search or pursuit of something ( quest )--
They went to the big city, in quest of excitement.
The knights rode off in quest of adventure of any kind.
That dog looks like a wolf, in quest of its prey.

Now that you know that, you can say--
"The reporter sneaked into the inquest, in quest of information about the man's death."