According to the report [see full English text], the principal problem is that the military are involved in killings, torture and disappearances. Mentioned are emblematic cases like Tlatlaya, Apatzingan and Tanhuato, where federal forces were identified as perpetrators of massacres.
It also lists the proliferation of organized criminal groups that "murder, kidnap, intimidate citizens, migrants, journalists and human rights activists."
The document states that problems from previous years persist, such as poor prison conditions; arbitrary detentions; threats and violence against human rights defenders and journalists; threats and violence against migrants; violence against women; abuse of people with disabilities; threats and violence against members of the indigenous population; threats against lesbian, gay, bisexual, transgender and intersex (LGBTI); trafficking, and child labor, including forced child labor.
The report identifies the situation of corruption and impunity in Mexico as serious, and cites further examples, such as the alleged collusion of authorities in the escape of Joaquin "El Chapo" Guzmán in July of 2015, and the investigation of the former Undersecretary for Crime Prevention and Citizen Participation in the Secretariat of Government Relations, Arturo Escobar. [MV Note: The Attorney General's Office presented charges of electoral crimes to a court, but the judge refused an arrest warrent, saying there was insufficient evidence.]
"Impunity and corruption in the system of law enforcement and justice remain serious problems, Impunity for human rights abuses remains a problem throughout the country, with extremely low processing rates for all forms of crime." the report states.
"Observers considered that (government) agencies are generally effective and adequately equipped with resources, but there was extensive public criticism that corruption is not investigated, prosecuted and punished."(With information from Infobae) Spanish original