The Royal Newfoundland Constabulary has called in the RCMP to investigate an allegation of assault against its officers.

The request stems from an incident on Dec. 15, when RNC officers were called to Dooly's on Topsail Road in St. John's.

It was there that the officers saw Bradley Bartlett, 25, drinking a beer outside. 

He alleges he was beaten when three officers tried to take him into custody for drinking in public and littering.

Bartlett's lawyer, Bob Simmonds, said his client was punched in the face three times and forced to the ground by the RNC as they were trying to detain him.

Photos from that night show Bartlett on the ground with a bloody face. 

Bartlett was charged with assaulting three RNC officers and resisting arrest. 

But in provincial court on Wednesday, the Crown dropped those charges.

On Friday, RNC Chief Bill Janes said he contacted the national police force to investigate, after the RNC received an assault complaint on Thursday. 

"The RNC is committed to providing any information we have to [the RCMP], in order for them to be able to do a full and thorough and independent investigation in relation to the matter," Janes said.

"On conclusion of the investigation, we will be sharing that information with you."

The Royal Newfoundland Constabulary Public Complaints Commission is also conducting an investigation into the allegations.