Seven years after a fire destroyed the Liverpool Council Chambers, police are making a fresh appeal for information after identifying a possible motive.
The property on Hoxton Park Road, Liverpool, was extensively damaged in the fire in the early hours of August 15, 2010 despite the efforts of 20 units and 80 firefighters.
Strike Force Gideon was established after the fire, which caused $20 million worth of damage, was deemed to be suspicious.
Property Crime Squad commander, Detective Superintendent Murray Chapman, says the strike force recently received new information about a possible motive for the fire.
"Detectives have been told the fire may have been lit following a dispute over a council-issued fine," Det Supt Chapman said.
"We are continuing to analyse relevant records and data from around that time, but investigators believe there are people who have knowledge of the dispute but might not realise the connection to the fire.
"Given the extensive damage caused by the fire, we also believe there was more than one person inside the chambers that night, and likely there are others who know more than they've told police.
"If you know something that may assist us, now is the time to come forward - before someone else does."