The Anti-Social Behaviour, Crime and Policing Bill received Royal Assent and became law this morning.
An attack on an assistance dog is now an aggravated offence, carrying the possibility of a prison sentence for irresponsible owners.
The law includes measures to force owners to curb the behaviour of out of control dogs.
A labrador guide dog was left severely injured following an attack in Alperton back in September 2012.
Owner Kevin Nugent was frustated after there were no laws in place to protect his guide dog.
There is currently no law in place to prosecute dog owners if their pet attacks another dog or animal.
Richard Leman, Guide Dog’s chief executive, said: “An attack on a guide dog can rob someone with sight loss of their independence and freedom, leaving them virtually housebound.
“With an average of 10 guide dogs currently being attacked every month, we are now looking to the police to fully utilise their new powers to deter these attacks, and prevent them from happening in the first place.”