A teenager found dead 11 days after going missing may have called the emergency services several times on the day she vanished, an inquest has heard.
Gaia Pope was reported missing from her home near Swanage, Dorset, in 2017, sparking a major search operation.
A police whistleblower has given a statement saying the 19-year-old made calls that were terminated by police because they said she was "abusive".
The Pope family described the anonymous officer as "courageous".
Miss Pope - who suffered from severe epilepsy - disappeared on 7 November 2017.
It prompted a series of searches by police, the coastguard and hundreds of volunteers in the Swanage area.
Her body was found on 18 November, close to where items of her clothing had been discovered two days earlier.
A post-mortem examination concluded she died of hypothermia.
The pre-inquest hearing in Bournemouth heard the identity of the whistleblower - called Officer X - is currently only known to the coroner and the Independent Office for Police Conduct (IOPC).
The officer has alleged in a statement to the police watchdog that Miss Pope telephoned the force on the day she vanished and the calls were terminated by police.
Rachael Griffin, senior coroner for Dorset, said information about two phone calls had not been known about previously.
She said: "If Officer X is to be believed, there is evidence of two items or documentation that have not been provided to me that could be very relevant to this inquest."
The coroner asked...
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