1/3 Rentals we have in ohio are checked with a beagle every month, usually by the time the dogs check the apartment again the persons got em again. Bedbugs have ruined apartments in big cities
This year I have sold 3 people beagles to use for detecting bed bugs.
The one guy has contracts with hospitals and doctors offices and uses the beagles to locate bed bugs that fall off people in the lobbys. He picks up the individual bugs, once the dog locates them.
Keith