Mia Irizarry says she was trying to celebrate her 24th birthday last month when the man approached her asking her why she was wearing the sleeveless Puerto Rico flag shirt, which also had "Puerto Rico" written below the V neckline.
While not a state, Puerto Rico is an unincorporated territory of the USA, and Puerto Ricans are American citizens.
Video of the June 14 incident shows the officer didn't respond. "We don't know what was going on outside the video, and we don't know what was going through the officer's mind".
"Why are you wearing that?" the man points to Irizarry in Facebook Live footage she captured, while repeatedly demanding to know her citizenship status.
The woman said she tried to get the officer to step in, but he didn't respond immediately to her pleas for help. 'The world is not going to change the United States of America. "Then you should not be wearing that".
"Because I can", she answered, before appealing to the police to intervene, saying she had rented some of the park's outdoor seating. The Forest Preserves of Cook County released a statement on Twitter, saying the officer who refused to help Irizarry has been placed on desk duty pending the results of an investigation into his actions that day.
As the video continues, more park officers arrive at the scene and finally sit the man down and ask for his ID.
Turning toward a policeman, who was standing several feet away, Irizarry said, "Officer, I'm renting this area and he's harassing me about this shirt that I'm wearing".
Trybus was arrested and charged with assault and disorderly conduct, according to the Forest Preserves.More news: Croatians who have made their mark in England
He'll also be required by law to answer questions posed to him by a commanding officer, Cook County Commissioner Larry Suffredin said Wednesday.
The officer has since been reassigned to administrative duty, pending the outcome of an investigation.
Ricardo Rosselló, the governor of Puerto Rico, said he was "appalled, shocked & disturbed by the officer's behavior".
Rossello added that Cook County is home to a diverse population and he believes Cook County Board President Toni Preckwinkle will handle the incident properly. Reports identify the man as 62-year-old Timothy Trybus. "I do not feel comfortable with him here, is there anything you can do?"
Roselló criticized the officer's behavior but expressed faith that local authorities would appropriately address the incident, which seems to have taken place in Cook County, Illinois.
"Hopefully, this officer will actually do something", Irizarry is heard saying when the second officer arrives.
"If you're drunk, you don't belong here", she is heard telling the man.
Forest Preserve District police Chief Kelvin Pope on Tuesday said Connor "should've stepped in, and he should've done something". "The United States of America is a nation that was built and thrives on diversity".
"This is America", he says. We are proud United States citizens.
The Trump administration has received criticism for its treatment of Puerto Rico, particularly for its response after Hurricane Maria struck last September.