Mel Gibson & Oksana Grigorieva Battle Continues

New details are continuing to surface in the battle between Mel Gibson and ex-girlfriend Oksana Grigorieva.

TMZ has revealed that the violent tapes of Gibson admitting to physical abuse and making derogatory comments to Grigorieva may be dismissed as evidence. In the state of California, "if a person isn't told their conversation is being recorded, it is not admissible in court."

However, Grigorieva could have legally recorded the conversation if she believed that it "related to the commission of any felony of violence." On Gibson's end, he claims to have text messages where Grigorieva clearly states that, "she recorded the conversations because Mel didn't keep his part of the deal to support her."

On the latest tape released by RadarOnline, an enraged Gibson is heard telling Grigorieva, who is planning to sue Gibson for defamation, that "no one will believe" her, after she accuses him of hitting their young daughter Lucia.

Other reports have claimed that Gibson and Grigorieva had a deal hammered out in the amount of $15 million, which was signed earlier on by both parties. Grigorieva would have had to turn over all "evidence" to Gibson's side. Grigorieva reportedly refused to sign a longform agreement saying that she felt "coerced."