He has turned out to be an ichiban field investigator.

The idea, opposed by many field investigators, was rejected, at least for now.

Once applicants pass those reviews, field investigators visit them at home.

She later became a field investigator and faced difficulty due to her disability.

In fact, many field investigators possess no formal education beyond high school.

They agreed to send a field investigator as soon as possible.

The field investigator said they would go into that when he came to visit.

The state had given me two slots for field investigators, and I had not filled either one of them yet.

At its peak, 104 persons were engaged in the work of the committee, including 34 field investigators.

At the peak of its activity in 1958, 104 persons worked for the committee, including 34 field investigators.