Probably a timeline, since you're writing about yourself.
Put card than your security code and than put in or take out money
Answer:
They had no proof whatsoever!
Explanation:
The problem is that, if the american teachers thought they saw that specific painting, and the person who later offered the police officers fruit, and acted surprised, could've hid the painting before the police got here. What the teachers could've done is take a picture and have proof for when the cops did get there. If they didn't have a phone, they should've kept their eye on the painting, someway or another.
HOPE THIS HELPS!! (: