be on somebody's tail

You've already got half the federal government on your tail.

How big a force have you got on your tail?

It's not any use trying to dodge, once one of them gets on your tail.

For the moment they've got no one on their tail but it may not stay that way.

If a cop car gets on our tail, we won't run.

"But it does show me that they're getting closer on our tail."

She managed to get a grip directly on the Will's tail as well.

You've got the best player in the world right on my tail.

It shouldn't take them all that long to get on our tail, either.

"If I read that right, we've got more than five hundred ships on our tail."