Officer Zhang felt a sense of appreciation for Su Shan's logic, as the attempted murder charge was confirmed, Yuan Shan won't have any hope of getting out of prison for the rest of her life.
She'll be trapped behind bars forever.
"Okay, Miss Su, what do I need to do?"
"Give her a chance to escape... When Zhang Lin arrives, I'll take her to get her blood tested, you arrange for the police to withdraw from Yuan Shan's ward at the right moment, and then deliberately leak Zhang Lin's location to her."