Original sentence: The city's "discriminatory" legal system and "unequal treatment of foreigners" has been brought to light by its alleged attempts to cover up information on the rape of Alexandre Robert, a 15 year old French-Swiss national, by three locals, one of whose HIV-positive status was hidden by the authorities for several months  and by the recent mass imprisonment of migrant laborers, most of whom were from India, on account of their protests against poor wages and living conditions
Edited sentence: The city's discriminatory legal system and unequal treatment of foreigners has been brought to light by its alleged attempts to cover up information on the rape of Alexandre Robert, a 15 year old French-Swiss national, by three locals, one of whose HIV-positive status was hidden by the authorities for several months  and by the recent mass imprisonment of migrant laborers, most of whom were from India, on account of their protests against poor wages and living conditions