Halstead dog attack death: American bulldog had shown "prey behaviour"published at 13:57 British Summer Time 16 May 2017
Orla Moore
BBC Local Live
Chelmsford Crown Court heard that Ruby - the American bulldog that killed toddler Dexter Neal last August - was a rescue animal which was rarely walked, and had shown no aggression towards humans before.
It heard how the dog did not react when Dexter's sister and one of the Dunne children walked past at the house in Halstead, but went for the little boy who was following behind them.
Prosecutor Kate Davey told the sentencing hearing that the dog may have exhibited "prey behaviour" - which is when a dog is not trained out of its wild instincts to attack.
"At the age of three, Dexter could not read the negative signs and had no chance to get out of the way," she said.
She added that owner Jade Dunne, pictured, could not reasonably have foreseen the attack.
The dog was later destroyed as it exhibited "unpredictable behaviour" while in the custody of dog experts.
Steven Levy, defending, said Dunne - a single mother of three - was sorry that "having a family dog has brought about the sad loss of Dexter".
Ms Davey said the Neal family had installed a tall fence at the foot of their garden after the tragedy, and Dunne had moved away from the area.