The retired officer and police protection campaigner condemned those who have "such contempt for society" that they put police at risk.
The campaigner and former police officer revealed he has "near zero faith" in policing minister Nick Hurd and London Mayor Sadiq Khan to protect policing in the UK.
The former police officer claimed that public confidence in the police had "plummeted" and that people had "all but given up" on them.
Former police officer Norman Brennan spoke to Julia Hartley-Brewer about the recent spate of violent crimes
Director of the Victims of Crime Trust Norman Brennan has called on the public to go to Downing Street to fight against police cuts
Norman Brennan, who represents some of the victims' families, spoke to Paul Ross following the murderer's death in prison
Retired police officer Norman Brennan spoke to Paul Ross about the damning report which claimed the police are letting victims of crime down