Coroner Lincoln Brookes opened an inquest into Sir David’s death, at a hearing in Chelmsford on 27 October 2021.
But a full inquest hearing has not been staged.
“We live in a democracy where elected officials should be safe,” Ms Amess told The Sunday Times.
“We have never had a full public examination into the events leading up to his death.
“My hope was, through this full public inquest, everybody would be given the knowledge of how this happened, and (that would) prevent it happening again.
“And right now it feels like we are waiting for the next one to happen.”
She added: “… there is still so much that we as a family and as a society do not know about what happened. It’s been failing upon failing.”
