A 27 year old man has been arrested after an alleged sexual assault in St Peter Port on Friday evening (15 Sept).
It's thought the incident happened at Ann's Place between 8 and 9pm.
Officers say the man was acting 'inappropriately and aggressively' towards a teenage girl at the St Julian's Avenue entrance to the area.
It's believed a number of people were walking, cycling and driving by at the time.
Anyone who witnessed the altercation, or has dashcam footage is asked to call the police on 01481 222222 or Crimestoppers anonymously on 0800 555111.

Guernsey vet struggles during long wait for work permits
Guernsey charity appeals after £700 worth of goods go missing
Search in Jersey for drone pilots who disrupted airport flying
Guernsey Museums report a 3% increase in visitor numbers
Sewage outfall fixed on Guernsey's east coast
Successful start to Guernsey Ports renewable heating oil conversion
Guernsey's Animal Shelter nurses oiled seabird
Home Affairs needs millions to maintain Guernsey's frontline services