Operation Bluestone Soteria is inviting victims of rape and other sexual offences to take part in a survey of the victim's experience of the police investigation and criminal justice process.
A new law standardising how and when the police can lawfully extract information from electronic devices takes effect.
Dame Vera Baird QC said the report's conclusions "fall short" as she continued to press for the establishment of a national policing protocol.
"We are now not short on recommendations. Ultimately, the problems in investigating and prosecuting rapes are plain and clear and it is drive and leadership to bring fundamental change on the ground that is now urgently needed."