While campaigning, Pena Nieto appointed a former general of the National Police of Colombia as his external advisor for public security, and boldly promised to reduce the murder rate in Mexico by 50% by the end of his six-year term. Critics of Pena Nieto's security strategy, however, said that he offered "little sense" in exactly how he will reduce the violence. During the three-month campaign, Pena Nieto was not explicit on his anti-crime strategy, and many analysts wondered whether he was holding back politically sensitive details or simply did not know how he would attempt to squelch the violence and carry out the next stage in Mexico's drug war. United States officials were worried that the election of Pena Nieto's Institutional Revolutionary Party may mean a return to the old PRI tactics of "corruption [and] backroom deals" with the cartels in exchange for bribes and relative peace.  In 2012, the president-elect emphasized that he did not support the involvement or presence of armed United States agents in Mexico, but considered allowing the United States to instruct Mexico's military training in counterinsurgency tactics. Beyond that, Pena Nieto promised that no other measures will be taken by the United States in Mexico.  The security policy of Pena Nieto has prioritized the reduction of violence rather than attacking Mexico's drug-trafficking organizations head-on, marking a departure from the strategy of the previous six years during Felipe Calderon's administration. One of the biggest contrasts is the focus on lowering murder rates, kidnappings, and extortions, as opposed to arresting or killing the country's most-wanted drug lords and intercepting their drug shipments. The government of Calderon justified its position by stating that the violence in the country was a necessary stage in Mexico's drug war, as weakening criminal groups fought for territorial control against one another and the government.  On 13 December 2012, a law was approved that included far-reaching security reforms. Mexico's Interior Ministry, greatly strengthened by the bill, was made solely responsible for public security. Part of Pena Nieto's strategy consists of the creation of a national police of 40,000 members, known as a "gendarmerie". The Economist reported that the gendarmerie would have an initial strength of 10,000, but the Washington Office on Latin America reported that it was reduced to 5,000 members and would not be operational until July 2014. The Interior Ministry announced that 15 specialized police units were being formed to exclusively focus on major crimes that include kidnapping and extortion, along with a new task force dedicated to tracking missing persons. Pena Nieto also proposed centralizing the sub-federal police forces under one command.

Answer this question "What kind of security policy does he advocate" by extracting the answer from the text above.
boldly promised to reduce the murder rate in Mexico by 50% by the end of his six-year term.