Taser shocks had little effect on three vicious dogs that mauled a police officer and a couple in western Sydney.  A 48-year-old man suffered multiple severe bite wounds to both arms and legs while his partner, 43, was bitten on the leg and hip when they were attacked by their neighbour's dogs on arriving home in Penrith on Wednesday night.  CCTV of the attack shows a woman checking her mail, when she is suddenly set upon by the dogs.  The woman's husband is seen trying to fend off the animals with a piece of wood, but then starts getting mauled.  A police officer who rushed to the Parker Street scene suffered a dislocated shoulder and deep bite to her leg after two of the dogs knocked her to the ground.  Inspector Kylie Koenig from Penrith Local Area Command said the officer's leg wound went through to the bone and that she would need surgery.  "There was a young child that was present at the time," Insp Koenig told reporters on Thursday.  "It was quite a traumatic incident for all.  Police officers attend the scene of a dog attack in Sydney's west. (9NEWS)  "They were extremely vicious dogs that required police to utilise OC spray numerous times and even resort to the use of a Taser, which had very little effect."  No decision has yet been made about future of the dogs, which were being held by Penrith Council on Thursday afternoon. Two of the three have been described as American Staffordshire-cross-pitbulls.  Their owner, a 29-year-old man, and his 31-year-old partner were both due to face Penrith Local Court on Thursday.  It's alleged the man threatened a senior constable after he was told the dogs had been taken to the pound.  The 31-year-old woman is accused of intimidating neighbours and breaching bail conditions.  © Nine Digital Pty Ltd 2016
A police officer and two members of the public have been injured after they were set upon by a pack of dogs in Sydney&rsquo;s west last night.