The police chief inspector said media regulators need more power to remove posts such as encouraging the 2024 summer riot.
Sir Andy Cook said it took too long to eliminate misinformation on social media to allow it to spread further and have a greater impact.
He said that despite the online security law being passed until recently, the tools needed to include such content were not provided to regulators.
"OFCOM needs to have the appropriate competence and competence in order to quickly lower positions in effective situations," he said.
“If you don’t fall them quickly, they will spread on the virus.”
He added that the Online Security Act currently has little to do with scenarios such as the violent disorder last summer.
The BBC has contacted Ofcom for comment.
It has previously concluded that there is a "clear connection" between disease in England and posts on social media and messaging apps.
During turbulent times, Ofcom faces criticism because they have not done more to stop the spread of untrue and inflammatory content.
Sir Andy made a comment as his je police and Fire and Rescue Services released a second report on police responses to the riot, focusing on the impact of social media.
More than 30 people have been arrested in the posts published during the riots, triggered by the killing of three children in Southport.
These include Tyler Kay, 26, and Jordan Parlor, 28, who were sentenced to 38 months and 20 months in prison for inciting racial hatred on social media.
In its first report on the riot published in 2024, Watchdogs found police were not prepared for the scale of chaos that broke out in parts of the UK.
Sir Andy said police missed the opportunity to prepare for the general disease and early events involving "extreme nationalist sentiment" were underestimated.
He said in his new report that some police units have “very limited” in handling capacity due to lack of resources.
He called for changes to the law around inciting public barriers to further prevent people from making misleading social media posts.
“The troops cannot control or offset the speed and amount of online content,” he said.
“But they need to better understand how fast-moving events will require them to refute false narratives online and be innovative in their approach.”
He said he believed police should "fill in information without validity", which made false information spread poorly so that people could refute with facts.
"When public safety is at risk, police cannot be passive," he said.