Established by Kaiser Rudolph von Goldenbaum in Imperial Year 9, The Inferior Genes Exclusion Act. Aimed at increasing the "vitality" of Imperial Society, the IGE Act was accompanied by several other reforms, including the abolition of social welfare.
At its heart, the IGE Act was a policy of forced sterilization directed at people deemed to be abnormal or inferior. This included the poor and the handicapped. People considered to be mentally ill were summarily executed. Eventually, having a family member that was subject to IGEA became a shameful, embarassing thing, and even those who would have survived under the law--primarily the handicapped--would often be smothered by their parents in infancy. Several parlimentians of the early Galactic Empire openly criticized the Inferior Genes Exclusion Act, and their defiance led Rudoph--or gave him the excuse--the permanently dissolve the Imperial Parliament.
Eventually, the IGEA, whose enforcement was handled by the Department of the Interior, became a law to be carried out by individual judgement. Politically enemies and dissidents would be decried mentally ill, and executed. Proof was neither required nor requested. Often, people would be gunned down by the police in the street, simply for participation--or even proximity--to a protest or anti-government rally. Millions of people were exiles to barren planets in the deep frontier, and countless citizens disappeared in the night to labor camps and prisons. Many became "living dead" after being subjected to harsh medical experiments and lobotomies, or chose to commit suicide in prison.
In law for more than 400 years, the Inferior Genes Exclusion Act was repealed by the Goldenbaum Dynasty sometime after Imperial Year 420.
"The law of the universe is the law of the jungle. It's survival of the fittest! Human society cannot be an exception. A society where the number of inferior people has increased beyond a certain level loses vitality and grows weak. I ardently wish for the prosperity of the human race! Accordingly, it is my holy duty as the superintendant of humanity to exclude those elements which weaken humanity."
-Kaiser Rudolph von Goldenbaum, upon the creation of the Inferior Genes Exclusion Act.