In this series, Article 14 has reported how 20 years of UAPA data from Karnataka show how India’s anti-terrorism law has been weaponised against Muslims during the years that the BJP was in power in the southern state. This fourth and final part shows how weak evidence and shoddy investigation lead to acquittals in the cases that go to trial. In 82.67% of 75 acquittals, independent witnesses contradicted the prosecution's account of events at trial. In nearly a third of these cases, police witnesses denied ever seeing police conduct recoveries or admitted to blindly signing documents submitted by the police.