Criminals create rival gangs and their conflicts concern the public. Due to the magnitude of the problem, city authorities have put in place a special police service: Metropolitan Police.
In Buenos Aires and Haiti, the government establishes a special police department aimed to work in the marginal neighborhoods and reassure the public.
The Catalan autonomous Police have replaced the Spain National Police, while police in Haifa, Israel face constant terrorist threats from neighboring countries.
The center of trafficking is the Paraná river, separating Brazil and Paraguay, where the Brazilian government has established a special police unit called NEPOM.
Gang wars and bloody struggles have made Acapulco less attractive for foreign tourists; members of special anti-criminal unit risk their lives every day to maintain security.