This was the second time that parents had publicly met to discuss their concerns about the possible sexual abuse of children.
But bruises are often the first sign of possible abuse.
"It's not as if we need an inspector to make us change, it would just be nice to weed out any possible abuses."
They also said he had suffered "possible" physical and sexual abuse.
The evidence in respect of the fourth child pointed to possible abuse but was not conclusive.
San Francisco is also under investigation for possible salary-cap abuses.
But he said he was concerned about possible abuses of such programs.
Law enforcement officials said they were looking into possible abuses of the state payroll.
And yet Medvedev has said the government will look into possible abuses.
Concerns about the abuses possible with such size and power have worried consumer advocates.