The gendarmerie was Haitian men trained to fight Haitians

Bernadel's punishment shows how gender, social standing and the occupation's authority over the street worked together. The women went back to selling and the gendarme declined to stop them, which suggests that when they could, Haitian women refused to be changed by the paraphernalia of military authority. The gendarmerie carried out the daily business of the occupation. It collected vending taxes, settled disputes, attended accidents and made arrests. It was composed largely of Haitian nationals trained to fight their own fellow citizens and to impose laws written by foreigners, and it is arguably the longest lasting thing the occupation left behind. Recruits came from every sector of society and most of them were working class and peasant men. They were given a small wage, housing in barracks, and classes in literacy and artillery. That combination made the force one of the few routes out of poverty available at the time. Their relationship to the nation stayed tenuous, and Haitians were divided about the gendarmerie then and have remained divided about it since.

The board of directors resolved to send James Weldon Johnson to investigate reports of atrocities. Pamphile explains why this was a departure. Until then the association had confined itself to equal rights for Black Americans and above all to the campaign against lynching. Johnson, newly in charge, added an international dimension on the conviction that racism was embedded in American policy toward Black nations and not merely in domestic practice. Haiti was his prime example of American racism exported. He was suited to the errand, having served as consul at Puerto Cabello in Venezuela and at Corinto in Nicaragua, and his maternal great-grandmother Hester Argo had left Haiti in 1802 during the war of independence. Before sailing he consulted Theodore Roosevelt, who was also unhappy with Wilson's handling of Haiti, and went with Roosevelt's blessing, taking Herbert Seligman with him.

Colonel Wise told Major Meade in the North to get Péralte, and the job went to Gendarmerie Captain Herman Hanneken, a marine sergeant commanding at Grande Rivière. Finding one man in a country that was on his side, guarded by people who moved him every night through mountains nobody had mapped accurately, was the assignment. In August 1919 Jean-Baptiste Conzé, a former Caco general living at Grande Rivière, left town after letting everyone know he had finished with the blan. A Gendarmerie deserter, Private Jean-Edmond François, went with him. Conzé occupied Fort Capois with rum, rations and money, and Cacos joined him. The money came out of Hanneken's own pocket, and every week François or Conzé slipped back into town to report. Péralte was suspicious, which was why he was still alive. Hanneken then led an attack on Fort Capois that failed as conspicuously as he could arrange, and went about afterwards with his arm bandaged and stained with issue red ink. Péralte sent Conzé congratulations and a commission as général de division. On 26 October he brought twelve hundred men to Fort Capois.

In January 1919 word reached Port-au-Prince that things were wrong at Hinche, out on the Plateau Central at the end of the new road. The corvée had officially stopped the previous October and was still running. Peasants ran into the bush at the sight of a gendarme. Prisoners taken by the marines were shot or simply vanished. Colonel Williams reported the charges baseless on the word of the district commander, Major Clarke Wells. Lieutenant Colonel Hooker went up and came back with the opposite finding. General Catlin, carrying a lung half destroyed at Belleau Wood, then went himself to Saint Michel, Maïssade and Hinche and talked to priests, magistrats and frightened peasants. The corvée was in full operation, prisoners had been shot with escape given as the reason every time, and Wells had made clear to his subordinates that he did not want prisoners reported. Catlin relieved Wells, moved every Gendarmerie officer out of the district, and brought courts martial against nobody. General Barnett read of indiscriminate killing in a court record that September and demanded an inquiry.