Two men have been charged in connection with the death of Pc Dave Phillips, Merseyside Police said on Wednesday night.
Clayton Ronald Williams, 18, from Wheatland Lane, Wallasey, has been charged with the murder of Pc Phillips.
Williams was also charged with attempt section 18 wounding against Pc Birkett, burglary and aggravated unauthorised taking of a motor vehicle.
Phillip Stuart, aged 30, of Mayfair Court, Oxton, was charged with aggravated unauthorised taking of a motor vehicle and burglary.
"They will both appear at Wirral Magistrates Court tomorrow," a Merseyside Police spokesman said.
Father-of-two Pc Phillips, 34, died after being hit by a pick-up truck in Merseyside early on Monday morning.
Prince Harry turned down the chance to back Wales in the Rugby World Cup following England's early exit.
Asked if, like his brother, he would be supporting the Welsh, who beat England 28-25 in their Pool A match, the prince replied: "There's lots of people to support now."
He also expressed his disappointment about England, saying: "It is a great shame for England but it's still going to be the best World Cup ever."
Prince Harry made the comments as he visited Sandy Park in Exeter for the Pool C World Cup match between Namibia and Georgia.
A fire broke out at a Gatwick Airport car park on Wednesday evening.
The fire started near a drop-off point at the north terminal and caused temporary disruption to the airport's shuttle service.
No one was understood to have been injured in the fire.
A Gatwick Airport spokesman said it had been extinguished but the cause remained unknown.
The president of Medecins Sans Frontieres has reiterated the organisation's call for an independent investigation into the US air strike which accidentally killed 22 people at a hospital in Afghanistan.
President Barack Obama called Dr. Joanne Liu on Wednesday to apologise for the strike on the charity's hospital in Kunduz
Following the call, Dr Liu said: "We reiterate our ask that the US government consent to an independent investigation led by the International Humanitarian Fact-Finding Commission to establish what happened in Kunduz, how it happened, and why it happened."
US President Barack Obama has apologised to medical charity Médecins sans Frontières (Doctors Without Borders) following the bombing of a hospital in Afghanistan.
President Obama also called Afghanistan's president to express his condolences after the US air strike killed 22 people.
The White House said the President spoke with MSF International President Dr. Joanne Liu.
"During the call, President Obama expressed regret over the tragic incident and offered his thoughts and prayers on behalf of the American people to the victims, their families, and loved ones," a White House spokesman said.
"The President assured Dr. Liu of his expectation that the Department of Defense investigation currently underway would provide a transparent, thorough, and objective accounting of the facts and circumstances of the incident and pledged full cooperation with the joint investigations being conducted with NATO and the Afghan Government."