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!! (:
So it looks like you pick a scenario, and you pretend you were there. type how you would feel and react, then type what you would want the manager of the establishment to do and how he\she would react
