Sureño groups are involved in every aspect of criminal activity including homicides, drug trafficking, kidnapping, and assaults. They are also heavily engaged in human trafficking. There have been many high-profile criminal cases involving Sureños in a variety of states. Their primary focus is the distribution of various forms of narcotics and carrying out orders handed by the Mexican Mafia. Police departments have a difficult time dealing with this gang because of its decentralized hierarchy at the street level. Law enforcement attempts to limit the influence of the Mexican Mafia over the various Sureño street gangs have been met with little success. By the late 1990s, a federal task force was set up in order to investigate the gang's involvement in the illegal drug trade; this resulted in the arrest of several of its members. The authorities confiscated thousands of dollars in drugs and money, as reported by the Los Angeles Times and local news channels. The group has historically quarreled with various rival gangs for placement and competition, which has resulted in many drive-by shootings and deaths. On August 24, 2004, a law enforcement preliminary injunction terminated the active members of the 38th Street gang, out of the streets,[clarification banning them from using firearms, alcohol, graffiti and other dangerous materials in public.