Massachusetts police are accused of a COVER-UP as they continue to withhold basic information on drowning of Barack Obama's personal chef

Massachusetts state police are covering up information about the drowning of Barack Obama's personal chef, labeling the incident an accident but continuing to withhold information under the guise of an 'ongoing investigation', DailyMail.com can reveal.

It's been 11 days since Tafari Campbell drowned in a pond bordering the former president's estate, but authorities are rejecting requests for even basic facts including the identity of the sole witness and the 911 caller. 

The state is citing a Public Records Law exemption that allows police to withhold any information that could jeopardize an active investigation.

But the head of the region's First Amendment coalition told DailyMail.com that police are abusing that law, given they've already ruled out foul play. 

The only matter pending is a toxicology report that could show whether Campbell had drugs in his system or suffered some sort of medical episode.