Oksana Grigorieva just took baby Lucia to a children's activities center in Sherman Oaks -- hours after we broke the story that daddy Mel Gibson is copping a plea in his criminal case.
Oksana was mum on the whole Mel issue while walking inside -- but her attorney Dan Horowitz told us she "trusts the District Attorney's office with their decision."
Oksana Grigorieva -- Plea Date with Baby Lucia
3/9/2011 4:22 PM PST BY TMZ STAFF
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