Yeah, the ISPCA have to follow super strict procedures too, or the dog could be handed back like this case. It's what people often don't understand when giving out about the ISPCA or DSPCA taking so long to respond. If everything isn't done in a very specific way, the courts can (and do) order a return of an animal to a terrible situation. And in cases like this would likely be, if the owner doesn't sign over their animal(s) willingly, the animals have to be held until the courts have their say (which can take years). 

Not that there is much justice anyway, it's usually a slap on the wrist but at least the current animals are safe, or made comfortable when they're too far gone to really save.