I even check my cameras.

What will differentiate them is the quality of their gear (camera, lenses, lights).

If a tenant gets a protection order, I'd change out the locks and probably install a security camera.

Do You Use a Professional Camera to Take Pictures and Video to Market Your Property or a Smart Phone?

Dye test can be done by a plumbing company sewer camera equipment.  

A man and woman in Richmond, Virginia, were in for a big surprise when they learned the alarm clock inside their rented home was actually a hidden camera.

Is it worth having the drains looked at with a camera when rehabbing?

You can always put up security cameras that record everyone going in and out. 

Rent a camera and see where the problem really is before you do anything crazy (not that hand digging up your waterline isn't crazy enough)

(Sometimes, you'd get answers like, yes my aunt has been thinking of selling her home or yes my sister has a property that hasn't sold for months, the listing is about to expire, sure that lady down the street has a small sign in the window) I did this when I first got licensed to sell real estate in Harford County, I would carry a legal size clip board, a camera hanging from my neck, tape measure and a yellow pencil in hand - I wanted to create curiosity, what's he doing?