Hallie Pritchard decided recently that she wanted to catch her sneaky sisters stealing things from her. So she decided to do what any savvy 12-year-old in this technological age would do: set up a webcam and let it roll. But when she she looked back at the footage, she got more than she bargained for.

That’s because Pritchard, from California’s Bay area, actually nabbed a burglar:

NBCBayArea.com reports that Pritchard’s camera caught a man snooping through her stuff during an open house.

“All of a sudden she comes running down the stairs screaming oh my god somebody ripped us off so really? We looked at the video it was really shocking,” Hallie’s father Chris Pritchard, told the site.

12 Year Old Hallie Pritchard Catches Burglar With Webcam

“I saw my chair move and I said what was that I fast forward back and I saw him come through a hall way came into my room looking through my drawers.” Hallie added.

HuffPo has more on who the burglar turned out to be:

Not long after, authorities identified the suspect as Douglas John Calandrella, a 46-year-old former real estate agent who police arrested approximately two years ago for a similar scheme.

Police say that during his first offense, Calandrella used keys stolen from lock boxes to pilfer more than 50 items, which he promptly listed on eBay, KSDK reports.

Once again, it serves as a reminder to be careful who you let in to your house.