But the new coalition government has been reviewing schemes, as it seeks to make cuts to reduce the record budget deficit.
The CPS subsequently received applications to review two of the charging decisions under the victims' right to review scheme.
The right to review scheme allows an alleged victim, within three months of the original decision, to call for it to be reviewed.
Belhaj and Saadi have indicated through their lawyers that they will challenge the CPS's decision under the victims' right to review scheme.
Under the victims' right to review scheme, Belhaj and Saadi have already indicated through their lawyers that they will challenge the CPS's decision not to bring charges.
Two of his accusers subsequently lodged applications under the victims' right to review scheme, challenging the decision not to pursue the case, but the CPS said on Tuesday that its initial decision had been correct.
"Over the last few years we have introduced a number of initiatives to improve our service to victims, including the creation of dedicated professional victim liaison teams, the victim right to review scheme and a victim complaint procedure.
On Friday, Greg McGill, the CPS's director of legal services, said: "As the result of a request under the victims' right to review scheme, the decision to take no further action in this case was looked at again.
For example, under the right to review scheme, brought in England and Wales in 2013, victims can appeal against a decision not to bring charges or to discontinue a case once a prosecution has begun.
Upon reviewing Scheme 1 and Figure 2, the total ion content given by eq 5 contains contributions from salt in pores, mNaCl,pore(x), salt from doping mNaCl,dop(x), and (sodium) ions from polyelectrolyte nonstoichiometry mNa,nonst.
