Detectives will question classmates of Tiahleigh Palmer in a bid to solve the suspected murder of the 12-year-old.
Tiahleigh was last seen being dropped off by her foster carer at Marsden State High School about 8.10am on October 30.
Her body found by fishermen on the banks of the Pimpama River on Thursday, 30km where she was last seen.
Police are hoping students may shed light on any plans Tiahleigh may have had to meet anyone outside her usual group of friends, including anyone she might have had contact with online.
“We will have a team of detectives at her school today. We hope to speak to lots of school students,” Detective Superintendent Dave Hutchinson told ABC radio.
A taskforce of 60 detectives is also searching databases of known child sex offenders as part of their investigation.
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A candlelight vigil was held overnight, with hundreds gathering in Loganto pay tribute to Tiahleigh.
Family and friends wore Tiahleigh’s favourite colour purple, carried balloons, and lit candles while remembering her as a bright and bubbly young girl.
Authorities are exploring the possibility that “Tia” had made plans to meet someone rather than attend school, with her Facebook account deactivated the day she disappeared.
Her school uniform and distinctive pink Mambo backpack weren’t with her when her body was found.
Detectives are treating the school girl’s death as a suspected homicide and while a post-mortem has been carried out, police are still not certain how Tiahleigh died.
Police are appealing for anyone who has visited the area around Kerkin Road North in Pimpama in the past seven days to come forward to help detectives establish a timeline.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000.
