Protest demanding justice after the death of Ariadna Fernanda Lopez, a 27-year-old woman who was found dead on a highway in Morelos state, in Mexico City
People take part in a protest demanding justice after the death of Ariadna Fernanda Lopez, a 27-year-old woman who was found dead on a highway in Morelos state, in Mexico City, Mexico November 7, 2022. Reuters

Less than half of femicides in Mexico result in convictions, research group Impunidad Cero said on Thursday, pointing to a lack of resources directed at investigating the murder of women and girls.

The group said in a report that 43% of femicide cases over the past six years lead to convictions, while noting that only a minority of cases were investigated as femicides - the killing of a woman or girl because of her gender, a crime which carries harsher sentences.

Of more than 5,600 killings of women and girls recorded by authorities in the first nine months of this year, half were deemed manslaughter and 38% murder. The report found that conviction rates for murder, for both women and men, is just 7%.

Mexico has one of the highest murder rates in Latin America, a region that accounts for the highest rates worldwide, according to the group and U.N. data.

Monserrat Lopez, a data analyst at Impunidad Cero, told reporters a trend of militarization was sidelining civilian institutions responsible for investigating murder and femicide.

Juan Antonio Le Clercq, who conducts research into the problem of impunity at Puebla's University of the Americas (UDLAP), said the budgets for state judicial offices averaged just 14.29 pesos ($0.75) per capita a year - aggravating a lack of public officials available to handle reports of crimes.

"I don't know who is supposed to investigate these crimes," he told a news conference to present the report.

Last week, parents of murdered women and girls marched in Mexico City to demand justice, with many saying their cases were not being adequately investigated or were dragging on for years.

Mexican states last year averaged about 10 prosecutors per 100,000 people, with on average just 13 police investigators and seven experts, Impunidad Cero said in its report.

With just over four judges per 100,000 people, Mexico would need 98 years at the current rate of increase to match Europe's 23 judges per 100,000 people, Le Clercq said.

The State of Mexico, despite having less capacity for investigation, was imprisoning people at twice the average national rate - with many detainees unable to afford a lawyer, he added.

Impunidad Cero recommended institutions collaborate to develop better protocols and capacities to investigate gender violence, and develop social reintegration measures to prevent offenders from repeating crimes.

A girl places a flower on the site where the dead body of Ariadna Fernanda Lopez was found on the highway Mexico-Cuernavaca
A girl places a flower on the site where the dead body of Ariadna Fernanda Lopez was found on the highway Mexico-Cuernavaca, in Tepoztlan, Morelos state, Mexico November 8, 2022. Reuters
Protest following the death of Debanhi Escobar, in Mexico City
People take part in a march to demand justice for the victims of gender violence and femicides after the death of Debanhi Escobar, an 18-year-old law student whose body was found submerged in a water tank inside the grounds of a motel in the northern state of Nuevo Leon, in Mexico City, Mexico April 24, 2022. Reuters
Protest against the murder of Marisol Cuadras, in Mexico City
Araceli Osorio mother of Lesvy Berlin, a femicide victim, speaks as another woman performs during a protest against the murder of Marisol Cuadras, who was killed during a shooting in the middle of a feminist march outside the municipal palace in Guaymas, in Mexico City, Mexico November 27, 2021. Reuters