The former Green co-leader said that she and her dad had bonded over a love of the outdoors – particularly hiking in the Rocky Mountains – as well as enjoying debates about books and politics.
But by April last year a series of strokes had left Andrew bed-ridden in a care facility, with no prospect of returning home.
Despite regular visits from his wife, daughters and grandchildren, Slater said her father was “clearly miserable”.
“He was in discomfort all the time,” she said.
“He could barely sit up and that was uncomfortable. Lying down was uncomfortable. His life was one of tubes and interventions.
“And although he had excellent, excellent care, he was just so unhappy.
“He was very clear in his mind that he did not want to continue in this way. And my mum didn’t want to see him suffer. I didn’t. Nobody wanted that.”
