Police were forced to taser and shoot the dog.
In the second incident, in February, an XL Bully called Kilo mauled a collie and left three people injured in East Kilbride.
Officers were unable to get the dog under control and had to call for back-up.
Armed police raced to the scene before locals heard a gunshot ring out.
The Police Investigations and Review Commissioner (PIRC) concluded that, in both cases, ...