The MOP-Gate case (Spanish: Caso MOP-Gate) was a major political corruption scandal in Chile that came to light in 2000 and involved widespread embezzlement and irregularities within the Ministry of Public Works (Spanish: Ministerio de Obras Públicas, MOP). It is regarded as the largest corruption case to emerge during the government of President Ricardo Lagos (2000–2006).

The case surfaced in 2000 as an outgrowth of investigations into an earlier case known as the Caso Coimas.^[1] The scheme involved the MOP making payments to 129 ministry clerks as "extra money" (Spanish: sobresueldos) for work that was never carried out, while a private consulting firm called Gate (Gestión Ambiental y Territorial Sociedad Anónima, or Gate S.A.) received unjustified payments related to concession highways and their projections dating back to 1997.^[1]

The mechanics of the fraud were illustrated by a specific example uncovered in March 2006. The MOP's Directorate of Roads carried out purported public tenders for road projects in December 2001 (valued at 16,520 million pesos) and December 2002 (valued at 18,880 million pesos). MOP advisor Eduardo D'Hainaut then requested that a firm called Prograf Limitada produce 500,000 road maps — work that was never performed. Because the funds had been allocated through the state budget, they were not returned to the treasury; instead, they were recycled to pay the unauthorized salary supplements. D'Hainaut and Prograf owner Eduardo López Mezquita were later charged in connection with this scheme.

On January 21, 2003, Judge Gloria Ana Chevesich formally assumed responsibility for the investigation, working alongside the Forensic Laboratory of the Chilean Investigative Police (PDI).^[2] Given the enormous scale of the corruption, Chevesich was required to open 25 separate investigative branches of the case, designated by letters from A to V. Among the most notable branches were the MOP-CIADE branch, which concerned agreements related to rainwater management, and the MOP-Délano branch, which involved allegations of document forgery against Matías de la Fuente, former chief of staff to President Lagos.^[3]

The investigation was closed on October 28, 2008. It concluded that fraudulent payments to the state — resulting from inflated contract values, concealment of costs, and the triangulation of funds to pay unauthorized supplements — totaled 1,253 million pesos.^[3] A total of 22 individuals from both the public and private sectors were charged with crimes including defrauding the state, fraud, and residual fraud. The case remained in the headlines for several years; supporters of Judge Chevesich commended her efforts to combat corruption within the Concertación coalition government, while detractors dismissed the proceedings as a politically motivated witch hunt.

On July 1, 2010, Judge Chevesich issued a ruling convicting 14 individuals of tax fraud and fraud.^[4] The ruling spanned 1,032 pages across nearly 50 volumes and also acquitted 17 other individuals.^[3] The sentences were as follows:

• Carlos Cruz, former Minister of Public Works (and former Minister of Transport and Telecommunications), was sentenced to three years in prison (suspended) and ordered to pay a fine of 799,142,217 pesos. Cruz had resigned from the Socialist Party of Chile in 2003 as a result of the scandal.^[5]
• Sergio Cortés, former head of finance and director of Concessions at the MOP, was sentenced to five years in prison (suspended) with supervised release and ordered to pay a fine of 777,842,217 pesos.^[4]
• Héctor Peña Véliz, owner of Gate consulting, was sentenced to 60 days (suspended) and ordered to pay the same fine as Cortés.^[4]
• Eduardo Bartholin (also identified as Eduardo Balbontín in some sources), former director of the Directorate of Hydraulic Works, and Gonzalo Castillo, former chief of staff of the MOP Undersecretary, were each sentenced to 61 days (suspended).^[1]
• Nazir Sapag, former director of the Center for Applied Research for Business Development (CIADE) at the University of Chile, was sentenced to 200 days (suspended) for fraud.^[1]
• Óscar Araos was sentenced to 541 days (suspended) for fraud.^[1]

On June 28, 2016, the Supreme Court of Chile issued the definitive sentence against 13 of the accused. Eleven were convicted as principals in the crime of continuous tax fraud, one as an accomplice, and one as an accessory after the fact. The heaviest sentences fell on Sergio Cortés, Carlos Cruz, and Óscar Araos.^[6]

In addition to prison terms, all 13 convicted individuals received the accessory penalty of permanent special disqualification from holding public office or employment. The court also accepted the civil lawsuit filed by the Chilean Council for the Defense of the State and imposed a collective fine of 799,142,217 pesos — the amount determined to represent the actual harm caused to the Chilean state — along with an additional penalty equal to 10% of the total amount defrauded.^[6]

The final sentences handed down by the Supreme Court were as follows:

Principals in the crime of continuous tax fraud

1. Sergio Cortés Castro – 5 years
2. Carlos Cruz Lorenzen – 3 years
3. Óscar Araos Guzmán – 541 days
4. Roberto Salinas Briones – 60 days
5. Sergio Hinojosa Ramírez – 60 days
6. Ramón Silva Améstica – 60 days

Principals in the crime of tax fraud

1. Nassir Sapag Chain – 200 days
2. Eduardo Bartholin Zanetta – 61 days
3. Gonzalo Castillo Navasal – 61 days
4. Héctor Quiroz Astorga – 60 days
5. Dolores Rufián Lizana – 60 days

Accomplice in tax fraud

1. Héctor Peña Véliz – 61 days

Accessory after the fact

1. Luis Jara Núñez – 40 days

The MOP-Gate scandal prompted significant institutional reforms in Chile. In 2004, the Alta Dirección Pública (ADP), or Senior Public Management Service, was established as a step toward creating a professional and merit-based civil service. The ADP was a direct response to the political consensus reached in the aftermath of the scandal and aimed to reduce the number of political appointees in public administration while improving efficiency and transparency. The legal framework for these reforms was provided by the "New Deal" law, passed in 2003 during the Lagos government, which sought to enhance the integrity and effectiveness of the public sector.^[7]

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