And how had anyone learned she was even working the case?

She'd been working the case for nearly two years in Europe.

I did not want to work cases in my neighborhood.

Or he may be trying to work the case in the presence of other people.

"Once we started working the case, our eyes began to open."

He's picked it up from a year and a half of working the case.

The agent working the case did not return phone calls.

Sometimes you just need to work the case, walk on the terrain, and ask questions of people who seem to know nothing.

The man working the case is going to be busy and running on no sleep.

He knows I'm working the case, and he's good with it.