Two children have allegedly been assaulted at the St Peter Port bus terminus.
Police say it happened at around 5:25pm on Tuesday 31 May.
Officers want to speak to anyone who saw what happened.
The force also wants people in the South Esplanade and bus terminus area with CCTV to come forward.
Anyone with information is asked to call PC55 Le Bachelet on 222 222 or Crimestoppers anonymously on 0800 555 111.
Guernsey students heading to university to receive Meningitis B vaccine
A UK Government programme to offer the meningitis B vaccine to Year 13 pupils, and those under 25 starting university this autumn, is set to be extended to Guernsey.
Guernsey teen set for month-long marathon swim
A Guernsey teenager is taking on a month-long, open water, marathon swim!
Guernsey Post introduce new services from early July
Changes include switching to sea for outgoing mail and offering airmail and enhanced mail tracking.
Guernsey Waste improves the quality of its free garden compost
The 'windrow' method ensures the temperature of garden waste is constantly monitored to provide optimum conditions.
Guernsey cat lover to ride the length of Britain in nine days
Former Commonwealth and Island Games cyclist Ann Bowditch expects the solo ride to be tough.
Unclaimed CI Co-op cash funds community projects
Money that was sitting unclaimed in dormant Co-op share accounts is being given to community projects in the Channel Islands.
Work to commence on 70 affordable flats and homes in Guernsey
Construction will begin this summer on the affordable housing project at the former CI Tyres site, now known as Court Falaise.
A new tax, more 'proportionate' to wealth, to be put to Guernsey's States
Deputy David Goy initially wants public feedback on a new tax system that would look at alternative sources of revenue, rather than GST.
