The Director of Public Prosecutions Keir Starmer QC has told ITV Daybreak it is sometimes important to "look again" at Crown Prosecution Service decisions on whether to charge an individual.
Victims' Minister Helen Grant has welcomes the Victims' Right to Review.
She said: "Too often victims feel intimidated and treated as an afterthought by a 'system' that makes their already horrific experiences worse - the Victims' Right to Review is an important step towards changing this.
"All victims deserve to know that the Criminal Justice System will work as hard as possible to deliver justice for them and help them recover and move on with their lives.
"That's why if a victim has the strength to come forward, it is right that we give them every possible chance to get the justice they so deserve."
Victims of crime, which includes bereaved family members or other representatives, can now:
- Ask the CPS to look again at a case following a decision not to charge, to discontinue proceedings or offer no evidence
- Those entitled to an enhanced service under the Victims' Code will also be offered a discussion with a prosecutor about the outcome of the review
Javed Khan, chief executive of independent charity Victim Support, said: "The Right to Review strengthens the rights of victims during the criminal justice process and is welcomed by Victim Support.
"Too often victims tell us that they don't have much of a voice in our justice system. This new initiative by the Crown Prosecution Service is a step in the right direction and will help to re-position victims back at the heart of our justice system."
The decision to give victims of crime the right to appeal against decisions not to charge was prompted by a Court of Appeal ruling involving a 2007 case in which the CPS decided not to bring sexual assault charges.
The decision was reversed by the Court of Appeal and in 2011 disabled man Christopher Killick was jailed for three and a half years for sexually abusing two fellow cerebral palsy sufferers.
The court stated "as a decision not to prosecute is in reality a final decision for a victim, there must be a right to seek a review of such a decision".
Victims of crime will be able to appeal against decisions by prosecutors not to charge suspects under a new policy unveiled today.
The Director of Public Prosecutions Keir Starmer QC has put out to consultation, plans for the new Victims' Right to Review (VRR) policy, which covers any decision taken by the Crown Prosecution Service (CPS) to not charge a suspect.
Unveiling the new policy, Mr Starmer says the initiative is one of the most significant victim initiatives ever launched by the CPS.
He said: "The criminal justice system historically treated victims as bystanders and accordingly gave them little say in their cases.
"The decisions of prosecutors were rarely reversed because it was considered vital that decisions, even when later shown to be questionable, were final and could be relied upon.
"This approach was intended to inspire confidence, but in reality it had the opposite effect. "Refusing to admit mistakes can seriously undermine public trust in the criminal justice system."