She joined the force as a volunteer in 1916, having previously been active in community affairs, including her local NAACP branch; she was appointed an officer in 1919.
She worked on juvenile and homicide cases, including referring women and girls to social agencies.
Robinson founded the Sojourner Truth Home, a shelter for women and girls.
Her police career ended when she permanently lost her sight after being injured by a prisoner.
Robinson continued community activism, including the campaign to desegregate schools and beaches.
She was married to Morgan Robinson, and had a daughter, Marian.