The Forensic Crash Unit are appealing for public assistance following a serious traffic crash in Caboolture overnight, October 4.
Around 7.20pm a Hino 300 truck and an e-scooter crashed on Bertha Street at the intersection with Mill Street.
The male rider of the e-scooter was taken to the Royal Brisbane and Women's Hospital in a critical condition.
Investigators are appealing to any witnesses or anyone who may have dashcam vision to come forward.
If you have information for police, contact Policelink by providing information using the online suspicious activity form 24hrs per day at www.police.qld.gov.au/reporting or call 131 444.
Report crime information anonymously via Crime Stoppers. Call 1800 333 000 or report online at www.crimestoppersqld.com.au.
