Rick Prior, Chair of the The Metropolitan Police Federation, said: "The Metropolitan Police Federation notes the decision of the court in the PC Perry Lathwood case.
"We are now considering our legal options.
"Police officers have no issue with scrutiny and accounting for their actions and use of force - but this has to take into account the dynamic and split-second challenges we face and the reality of our role.
"Colleagues across London – keeping the capital safe as you read this – will be discouraged, dismayed and disheartened today.
"And worried that they too can be handed a criminal conviction for doing the roles the public and society expects of them.
"For doing their job."