It also reminds police and prosecutors to ensure that victims have the opportunity to provide a personal statement to court; to investigate why any victim withdraws a complaint to check it is not due to pressure; and to consult victims on bail and restraining orders for suspects.
The CPS said there had also been a sharp increase in the number of breaches of restraining and non-molestation orders, the majority of which relate to domestic violence and can involve stalking-like behaviour. Prosecutions rose by 14.6% in 2013/14 to 18,149 cases.
The DPP said: "I hope the increase is partly because victims are more confident in coming forward. Online stalking may perhaps be more visible. It leaves an evidential trail and provides the evidence to prosecute. The new act is working well. Prosecutors have a range of offences they can look at to bring cases to court. I expect the number of cases to rise as we get more allegations.