The 17-year-old arrested in relation to an incident in a police van in Perth has been released.
A Police Scotland spokesman confirmed the teenager was released pending further investigation.
Stuart Lymer, of Uttoxeter, Staffordshire, appeared in court charged with having a knife in his possession in a police van on March 5.
The 45-year-old appeared in private before Sheriff Gillian Wade on March 7 at Perth Sheriff Court to face a charge of possessing a knife at Perth railway station, Glasgow Road, on March 5.
Lymer, who was represented by local solicitor David Holmes, made no plea or declaration. Mr Holmes had asked for him to be released on bail but Sheriff Wade refused this and remanded him in custody.
Officers from Staffordshire Police were present at court prior to the case being heard.
Lymer was apprehended by police at Perth railway station on Monday after being spotted with a 17-year-old female who had previously been reported missing.
Both parties were said to have suffered injuries in the vehicle.
Police Scotland subsequently referred the matter to the Police Investigations and Review Commissioner.
