I understand that.

[And he did, because if he had the same ability Una did, he would be volunteering to do the same thing she was.]

Isn't there a smaller scale test we could try? I'd rather not have two infected officers if it could be avoided.

[It's not that he didn't trust her, he did, but he was also nervous. Who knew if something from this universe could kill her, or worse. If it doesn't burn it out, would it create something more resilient?]