AceShowbiz -

Paula Patton is declaring war with Robin Thicke. The "Warcraft" actress has just made an explosive claim against her baby daddy amid their ongoing custody war over son Julian. She claimed in her new docs that the "Blurred Lines" hitmaker took a DCFS worker charged with protecting their son to a fancy dinner.

According to the complaint, obtained by Radar Online, Robin "took a DCFS worker out for an expensive sushi dinner while DCFS was actively investigating allegations of abuse perpetrated by Mr. Thicke." Paula said "DCFS cannot be trusted with respect to the current investigation" into Robin's relationship with Julian and the abuse charges.

Paula claimed that Robin even launched a secret plot to charge her with kidnapping Julian. According to her court papers, Robin "escalated the abuse by embarking upon a retailiatory conspiracy to paint [Patton] as an 'alienating law-breaking parent.' "

His scheme involved "numerous criminally-actionable activities." He "conspired with others to commit domestic violence" and "terrorized" Paula and Julian, "falsely reporting to law enforcement that [Patton] engaged in the crime of kidnapping with respect to [Julian]," falsifying court orders "for a fraudulent or deceitful purpose" to create "the appearance that she was in violation of a valid court order," causing DCFS and law enforcement to intervene.

According to Paula, Robin wanted "to cause [her] arrest in front of Julian ... [and] to embarrass and humiliate [Patton] in front of [Julian]," as the ultimate "retribution."

Robin's camp has denied the allegation though, telling TMZ that Paula's claim is bogus. While the rep admitted that the singer went to Nobu with Julian and the DCFS worker, the DCFS worker did not eat or even sit at their table. The DCFS worker accompanied them because the judge ordered that a monitor be present for all visits. The rep insists that Robin only contacted police once last month when Paula had gone MIA for 10 days.