I demand to know what this screencap is from

This screencap from a presumably foreign video of one woman’s stand-off with a police officer is hilarious and I must know where it originally came from.

Unknown

The screencap comes from Reddit’s r/funny section. The typically helpful comments there yield nothing of note. One commenter says it’s from a show called Tricks of the Shoplifters in the UK, but Google tells me nothing.

“I’m not going to run anywhere. I’m fat.” It’s so beautiful.

I feel not unlike Captain Ahab here, conveniently also chasing a whale of unknown origin.