Officer Watkins grabbed the former contract with clenched fists until it creased, crumbled, and tore in a few places. He turned to Zach with a cramped expression.
It was obvious Zach had done something. There was no other explanation. Watkins knew Zach was behind the contract turning from an orderly set of lines and letters to a stick figure insulting him.
But if he wanted to keep his job, Watkins had to let it go. Even if he knew, there was no way he could prove it was Zach. Saying anything about it would mean he had added another charge to Zach's arrest but without any evidence. He didn't have any evidence of Zach's involvement in the smuggling now, either.
If Watkins tried to accuse Zach of tampering with evidence without evidence of said crime, he would be trying to falsely arrest Zach on several charges without sufficient grounds.
