By Jen Heger - Breaking Celebrity News Legal Editor

The Los Angeles County Department of Children and Family Services has formally interviewed Halle Berry's baby daddy, Gabriel Aubry, in connection with allegations that he pushed a nanny while she was holding the former couple's three year old daughter, Nahla, Breaking Celebrity News is exclusively reporting.

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Against Aubry

Aubry's interview with social workers was thorough and exhaustive. "These are very serious allegations and Gabriel was obviously very nervous," a source close to Aubry tells Breaking Celebrity News. "Gabriel feels that he is living in a police state as far as his time with his daughter is concerned.

"He is a doting and loving father and extremely attentive to Nahla. His daughter wasn't present when the interview took place. The investigation will remain open at this point, b