Specialist officers are examining a property in Mill Street following an 'unexplained death'.
Officers carried out a welfare check this afternoon (10 December) at a flat on Mill Street.
They found a deceased man inside, believed to be 53 years old.
A crime scene cordon is in place, and detectives want to speak to anyone with information.
The Criminal Investigation Department can be contacted on 01481 222 222.
States to vote on independence for The Ladies' College
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Guernsey Budget 2027: £15m growth fund and fuel duty hikes
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Donations in memory of Hannah Benfield to Alderney rescue groups
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Deputies asked to approve £6m Guernsey Airport roof repairs
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Majority of Guernsey stamps bought by collectors
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Alex Scott withdraws from England squad
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GST backlash prompts call for calm from Guernsey deputy
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Deputies vote in GST at 3% as part of tax reform package
Policy and Resources' package to raise revenue but ease the burden on the less well-off is passed after six days of debate.
