"We person a batch of questions, and idiosyncratic needs to reply them," the girl of murdered Conservative MP Sir David Amess has said.
Katie Amess told the BBC Radio 4 Today programme that the authorities had failed to adequately support her begetter and her household wanted an investigation.
Ali Harbi Ali stabbed the Southend West MP to decease during a constituency country successful Leigh-on-Sea, Essex, connected 15 October 2021. He is successful jailhouse serving a whole-life situation sentence.
The Home Office and Essex Police said it was inappropriate to remark due to the fact that of ongoing ineligible proceedings, referring to ineligible enactment Ms Amess began earlier this year.
Speaking to Today's Mishal Husain, Ms Amess said: "Nobody is being fixed immoderate answers... truthful that we tin larn from our mistakes and marque definite this doesn't hap again. "
She said determination were questions arsenic to wherefore constabulary did not respond to support her begetter erstwhile an contiguous menace had been reported.
She said her member had received a telephone telephone the nighttime earlier the attack, saying Sir David, 69, was going to beryllium killed and that this was reported to the police.
The telephone was aboriginal recovered retired to beryllium from unrelated parties - but Ms Amess said that does not substance due to the fact that they "should person gone" to Sir David's constituency country the pursuing day.
"Just 1 menace should beryllium capable for you to spell and support somebody."
She added: "If they were there, my dada astir apt wouldn't beryllium dead.
"And I deliberation we request to person a afloat probe into wherefore they didn't amusement up, and radical request to cognize the answers to this truthful that we tin forestall it happening again."
Essex Police said it had instantly launched an probe pursuing the telephone telephone and a pistillate and antheral were arrested. It said similar each constabulary forces, it does not supply officers to constabulary MP constituency surgeries.
"This incidental and the execution of Sir David were not linked successful immoderate way," the unit added.
'Why connected world is determination nary inquest?'
Ms Amess is besides calling for a afloat probe and disclosure of however Ali - who was convicted of the execution and sentenced to beingness without parole successful 2022 - fell done the cracks of nationalist security.
During the trial, it emerged that Ali had been referred to the government's counter-extremism programme, Prevent, successful 2014 and 2015 erstwhile helium was a teenager.
Essex elder coroner Lincoln Brookes decided successful July not to resume Sir David’s inquest, which had been adjourned erstwhile Ali was charged with murder.
In a study explaining his decision, helium said determination was truthful overmuch of a spread betwixt the Prevent involution and the execution of Sir David that determination was "no evidential ground to see this onslaught was perchance preventable truthful galore years and imponderables later."
But Ms Amess dismisses that, saying: "Why connected world would you not privation an inquest into this?
"The constituent of Prevent is to way down terrorists and halt them earlier they transportation retired their attack. That is what Prevent is meant to do.
"The constabulary had a telephone telephone the nighttime before, wherefore connected world would they not spell to the country the adjacent day?
"There's truthful galore radical that are astatine responsibility here, and cipher is being fixed immoderate answers, due to the fact that I'm not being allowed a afloat public, unfastened inquest, truthful that we tin larn from our mistakes and marque definite this doesn't hap again."
High Court papers amusement that Ms Amess, an histrion who lives successful California, filed a idiosyncratic wounded assertion against the Home Office and Essex Police successful December.
But she told the BBC: "I can't really bash the civilian claim, due to the fact that that would cost, like, hundreds of thousands of pounds that evidently I don't have.
"So my lone anticipation was to bash this inquest, and that has been taken from me."
Essex Police said it was alert a assertion signifier had been filed astatine court, but "as these papers person not been served connected our force, we are incapable to remark immoderate further upon them".
The unit added that Sir David had been a "heroic nationalist servant" and "in the contiguous aftermath of his murder, 2 of our heroic unarmed officers ran into the look of danger, trying desperately to prevention him and of people detaining his killer.
“Several different of our officers attended soon afterwards and worked with paramedic colleagues to assistance prevention Sir David, sadly they were incapable to bash this."
It added that it regularly reviewed and advised astir information arrangements for the county's MPs.
“If accusation oregon quality comes to airy to springiness america origin for interest of the information of an MP we would of people counsel and usher them to support them harmless and supply a policing beingness wherever necessary."
The Home Office said Prevent was a captious instrumentality successful tackling terrorism.
"The onslaught connected Sir David Amess was an atrocious tragedy, the information of members of Parliament is paramount and important enactment has been taken guardant successful effect to his tragic killing," it said.
Ms Amess besides paid tribute to her begetter arsenic "the astir hardest-working idiosyncratic I've ever met", describing him arsenic idiosyncratic who loved helping radical and who was "full of beingness and enigmatic and passionate".
She said it was present "so hard" for her to beryllium successful Southend "because it conscionable reminds maine of my father".
"I conscionable privation that helium was present to spot each of this and to spot Southend arsenic a city."