Murder detectives questioning a genocide of teen Lucy McHugh have asked Facebook to “preserve” information on some users’ accounts.
The 13-year-old’s physique was found in woodland nearby Southampton Sports Centre early on 26 July.
Facebook pronounced it was “working directly with Hampshire military on this case”.
As a US-based company, entrance to private information on a amicable network contingency be requested by a US courts system.
Last week a 24-year-old male was charged with self-denial information relating a box by allegedly unwell to divulge his Facebook cue to police.
Hampshire Constabulary pronounced that in a pierce apart to a charge, it had asked a amicable media website to save information on “relevant accounts”.
The Crimestoppers gift has offering a prerogative of adult to £10,000 for information heading to a detain and self-assurance of a chairman or people obliged for Lucy’s death.
Spokeswoman Emily outpost der Lely said: “I can’t even start to suppose what Lucy went by and a pang her family are now experiencing.
“This is because a gift is putting adult this money, in a wish we can move a chairman or people to justice.”
Police are sifting by 15,000 hours of CCTV footage.
On Tuesday, images were expelled display Lucy flitting a Tesco Express store on a dilemma of Coxford Road and Lordswood Road during 09:30 BST on 25 July.
The footage was prisoner half an hour after she left her home in Mansel Road East for a final time, and half a mile from where her physique was found.
A 24-year-old male arrested final week on guess of murder and passionate activity with a child was bailed on a condition he did not enter Southampton.
The same male seemed in justice on 31 Jul charged with self-denial information relating to a murder investigation.
Stephen-Alan Nicholson, of no bound address, was remanded in control to seem during Southampton Crown Court on 31 August.