Caroline Bennett, cranes and indigenous affairs minister, says a video that looks like showing off a Thunder Bay police officer who attacks the youth of the first nations on a stretcher undermines ongoing work to correct the frail relationship between indigenous peoples and police.
The Thunderbird police said the forces were aware of the video, which was posted on Facebook on Saturday and examined.
In a 21-second video, a voice is heard that shouts: "That's enough" before a female officer strikes the teenager in the face.
Then, the policeman shouts: "Do not spit on me, do not spit on me" while you appear strongly to lower your face into stretchers.
Bennett, whose father was a police officer in Toronto, said the activities shown in the video were contrary to the way the police deal with the tense situation.
"It's really disturbing, because it puts everything back," Bennett said.
Alvin Fiddler, the great head of Nishnawbe Aski Nation (NAN), who represents 49 northern first nations in Ontario, calls for an independent inquiry into the incident.
The NAS announced that the young are 17-year-olds from the First Nibinamik nation, about 500km north of Tron Bay. The young were taught at the Matawa Learning Center.
Bennett said he supports the call for an independent investigation into the incident.
"It does not return to everything we learned [the] Missing women and girls are missing and killed [inquiry] in terms of sexism, racism in police work, all those things we are trying to move forward and change, "Bennett said.
"This is about the power and inadequate use of physical methods, as opposed to what we know, works in terms of de-escalation."
Police Thunder Bay is under systemic investigation of racism
The Ontario Independent Audit Director's Office is expected to publish a report this month after investigating allegations of systemic racism in the way the Thunder Bay police deal with deaths and missing persons involving indigenous people.
Senator Murray Sinclair is also expected to announce his findings shortly after an investigation by the Civilian Police Commission in Ontario for the Thunderbird police services board.