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I am sorry to hear about this situation. NJ CPS (called DCF) has a state-mandate to stand before the court for child custody if they feel and can prove the child is in danger or being abused or neglected.
Whether or not this is neglect worthy of losing custody (or being threatened with this) is debatable. However, if the child is suffering due to the neglect, then DCF can threaten to pursue action in family court unless the parent agrees to a "parenting plan" where she corrects the problem and DCF checks up on the child for a few months.
If you feel that this is worth pursuing, you can file a complaint. It may be best to file the complaint anonymous, although in reality, it is never really 100% anonymity since the number or the IP address used is logged with the system and may be subpoenaed, for example.
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