"The prosecution is under a duty to pursue all reasonable lines of enquiry in an investigation, and to disclose to the defence any material it uncovers which may be reasonably capable of undermining the prosecution case or assisting the defence."
If you, as the victim, did not know the attacker and there was no reasonable reason to suspect you did know each other then your phone would not be requested into evidence.
You have to remember the vast majority of rapes are committed by parties who know each other previously, which is why it's so relevant to this specific crime.
https://twitter.com/BarristerSecret/status/11228241787200552...
"The prosecution is under a duty to pursue all reasonable lines of enquiry in an investigation, and to disclose to the defence any material it uncovers which may be reasonably capable of undermining the prosecution case or assisting the defence."
If you, as the victim, did not know the attacker and there was no reasonable reason to suspect you did know each other then your phone would not be requested into evidence.
You have to remember the vast majority of rapes are committed by parties who know each other previously, which is why it's so relevant to this specific crime.