This controversial law allowed slave-hunters to seize alleged fugitive slaves without due process of law and prohibited anyone from aiding escaped fugitives or obstructing their recovery. because it was often presumed that a black person was a slave, the law threatened the safety of all text from an online exhibit describing the fugitive slave law of 1850- library of congress what was one result of the law described above? a religious groups left the abolitionist movement to avoid political controversy. b abolitionists societies began to focus their efforts on promoting women's suffrage c northerners who believed the law was unfair began to support the abolitionist movement. d southerners used the law to challenge the constitutionality of abolitionist goals.