President Vladimir Putin's allies have passed a preliminary draft bill in Russia's parliament that would ease penalties for domestic violence, which supporters say would keep the state from meddling in the home but critics say would encourage abuse.

Asked about the domestic violence law at a news conference last month, Putin said that while he was not a supporter of parents smacking children, the authorities should not interfere in family affairs without justification.

"We cannot go crazy here. It's harmful, at the end of the day it destroys the family," he said. "Cavalier meddling with the family is not acceptable."