Crime Report in Britney Case

Law enforcement sources tell TMZ the LAPD wrote up a crime report in connection with last week's standoff at Brit's home.

Sources say cops wrote a Child Endangering Report which is now under lock and key at the LAPD. Sources say this is a preliminary investigation report, meaning the LAPD can conduct further inquiry and possibly even arrest Spears if they determine a crime was committed. We're told the report was written because of all of the events at the house -- including locking herself in the bathroom with Jayden and violating the custody order.

We're told it's unlikely the LAPD will arrest Brit since the custody court is all over the matter.