The LAPD spent over an hour at the home of Halle Berry ... questioning the Oscar-winning actress about ex boyfriend Gabriel Aubry's treatment of their former nanny, Alliance Kamdem.

Kamdem filed charges against Aubry after he reportedly shoved her and screamed racial slurs. This incident all allegedly took place early last week while Kamdem was holding the 3-year-old little girl. Halle reportedly did not witness the alleged incident.

Once Kamdem filed a police report, the LAPD began investigating the former model for misdemeanor battery and child endangerment.

Aubry claims he did not push the nanny, but rather she tripped while holding Nahla.

Berry will find out Monday as to whether the judge will force Aubry to stay away from their daughter.