"Who?" asked the chief detective.
"You'll see!" I said before running out the door to the beach.
Once there, I quickly told the volunteer in charge of cleaning the beach what happened. A person was stealing bottles from the "litter" bin near the parking lot, probably to recycle and get money, and I knew how to confirm who.
All I had to do was get some volunteers to disguise as recycle bins, and when the thief came to look in them, we would arrest them.
The thief came, but not in a way I expected....