What happened here...?
I'm pretty Quinn and Hobbs could've been caught. When Finch took Quinn into the office to question Hobbs on his cleaning night, Finch pressed some machine that I thought to be a recording device. I also thought it being a lie-detecter, but I don't think they were invented in the 60's, and Finch would've constantly looked at it to check any activity. I'm pretty convinced it's a recorder.
When Finch is pulled out of his office, and Quinn tells Finch to stop the heist - isn't the recorder still recording? Did I miss something like Finch stopping the recorder? Wouldn't everything that Quinn and Jobbs exchanged between themselves be recorded on the active recorder?
:/
I was thinking about it during the movie, and was surprised that's not how they caught the two.