In Surrey, the SPCA is the agency paid to protect humans from animals. Some of the ways to protect people from dogs are keeping them securely chained, or in a secure pen, or muzzled at all times. That is what the law requires in Surrey and almost everywhere in BC and in fact, in the whole world. A municipality must protect its citizens, that's why all municipalities pay for police, fire-fighters, and dog controllers (dog catchers). That's why municipalities, such as Surrey, pay the SPCA to destroy dogs. (See: http://www.animaladvocates.com/top-stories/harrispitbulls/index.php.)

When a dog bites or even menaces a person, a dog, a cat, or a farm animal, then the SPCA in Surrey gets paid to make the owner control the dog by - yes, you got it - chaining, penning, and/or muzzling. This treatment of dogs is universally understood to be a form of cruelty.
(See: http://www.animaladvocates.com/yard-dogs/expertopinion.php.) But that is what the SPCA is paid to do to dogs in Surrey and other places where it has a contract.

It doesn't have to. The days when the SPCA can excuse dog control contracts by saying that it was a more humane dog catcher are long past. It never was more humane, as plenty of evidence proves. In fact, the alternatives to the SPCA, which some municipalities chose in the last eight years, were more[/] humane than the SPCA.

This seems to be a conflict of interest between the SPCA's mandate to protect animals from people and taking money to protect people from animals. Almost everyone thinks the SPCA speaks for animals, but in municipalities where it is paid to control dogs, city hall speaks and the SPCA listens.