"But why would they purposely let him slip through the net?"

Sandy purposely let the ball go past her.

What was there to "sense" when Archer was purposely letting it show?

In the last two years he had purposely let the instincts rust.

From 1980 to 1985, South Korea purposely let the won fall by 35 percent.

This was a waiter who had purposely let himself be cornered there.

Maddie purposely let his first name roll off her tongue.

He had purposely not let himself look at it since that night.

In the 70's, her landlord purposely let the building fall into ruin, she said.

I purposely let him fall hard, and he was still a little groggy when he came to his feet.