A very interesting report from the Department of State of the USG, complete document can be found at the bottom link, follows pertaining excerpts:
Bolivia is a constitutional, multiparty republic with an elected president and a bicameral legislature. In 2014, in a process deemed free but whose fairness was questioned by international observers, citizens re-elected President Evo Morales Ayma, leader of the Movement Toward Socialism Party (MAS), for a third term. In 2016 the government held a referendum to allow the president to seek a fourth term in office. Citizens voted the measure down in a process that international observers deemed mostly fair and free. In November 2017 the Plurinational Constitutional Tribunal struck down the constitution’s ban on term limits, in a controversial ruling that stated term limits violate an article of the American Convention on Human Rights that guarantees a right to political participation. On December 4, the Supreme Electoral Tribunal approved Morales’ petition to run for a fourth consecutive term in 2019.
Civilian authorities maintained effective control over the security forces.
Human rights issues included reports of unlawful or arbitrary killings and torture by government officials; harsh and life-threatening prison conditions; lack of judicial independence; political prosecutions; arbitrary detention; reports of censorship and physical attacks on journalists by state security forces; substantial interference with the rights of peaceful assembly and freedom of association; corruption in all levels of government; trafficking in persons; crimes involving violence targeting lesbian, gay, bisexual, transgender, and intersex (LGBTI) persons; mob violence; and forced labor and use of child labor.
The government took steps in some cases to prosecute members of the security services and other government officials who committed abuses, but inconsistent application of the law and a dysfunctional judiciary led to impunity.
d. Arbitrary Arrest or Detention
The law prohibits arbitrary arrest and detention and provides for the right of any person to challenge the lawfulness of his or her arrest or detention in court, and the government generally observed these requirements.
The government sometimes used the judicial system for political purposes, taking legal action against several opposition members and critics of the government. For example, the government threatened charges against former president Carlos Mesa (2003-05) of “damage to the state” for the loss of $42.6 million related to the arbitration won by the Chilean mining company Quiborax. During Mesa’s term as president, the government initiated the process of rescinding the mining concession with Quiborax. Mesa was accused of beginning the process improperly in 2004. The Quiborax case was still open during Evo Morales’ first term in office. During that time Quiborax representatives offered a settlement of three million dollars. In 2016 Quiborax again offered to settle the case, this time for $27 million. The government rejected both offers, which led to prolonged international arbitration and ultimately a $42.6 million dollar judgement against Bolivia. On July 26, the vice president announced that charges against Mesa would not proceed during the year but left open the possibility they would be renewed thereafter.
Criminal proceedings remained pending against various former government officials, which the Attorney General’s Office began in 2016. Media reported 40 open cases targeting the mayor of La Paz, Luis Revilla; 30 against Ernesto Suarez, the former prefect of Beni; and multiple cases against the governor of Santa Cruz, Ruben Costas; the governor of La Paz, Feliz Patzi; the mayor of El Alto, Soledad Chapeton; former presidents Jorge Tuto Quiroga and Carlos Mesa; the mayor of Tarija, Rodrigo Paz; and the leader of the National Unity opposition party, Samuel Doria Medina. In addition, on January 29, the government opened an investigation of the mayor of El Alto, Soledad Chapeton, for mishandling municipal land that was transferred to the private sector by the then mayor of El Alto in 1990. Although Chapeton was 10 years old at the time the land transfer occurred, her supposed transgression was the failure to recuperate the land from the private owner.
e. Denial of a Fair Public Trial
The law provides for an independent judiciary, but the judiciary remained overburdened, vulnerable to undue influence by the executive and legislative branches, and plagued with allegations of corruption. Authorities generally respected court orders, but on several occasions they pressured judges to change verdicts. Judges and prosecutors sometimes practiced self-censorship when issuing rulings to avoid becoming the target of verbal and legal harassment by the government.
Physician Jhiery Fernandez was detained and imprisoned in December 2014 for the alleged rape and death of “baby Alexander,” who died in November 2014 while at the hospital where Fernandez was on duty. On March 27, after nearly four years of preventive detention, during which he suffered from what local NGOs characterized as “biological torture” that included sensory deprivation and solitary confinement, a court sentenced Fernandez to 20 years in prison for rape, homicide, and failure to perform medical duties. The president of the court, Patricia Pacajes, admitted in secretly recorded audio, however, she had known Fernandez was innocent. Nevertheless, she convicted him to cover up a mistake made by the forensic doctor, Angela Mora. According to her own account, Pacajes knew the baby was never a victim of rape and that an incorrect autopsy was made public due to a forensic diagnostic error. After the president of the Permanent Assembly of Human Rights and other human rights groups called for an investigation of the case, the president of the Council of Magistrates, Gonzalo Alcon, stated there were indications of criminal responsibility against Pacajes. On September 24, Pacajes was dismissed from her duties as a judge, and on October 29, the Court of Anticorruption and Violence ordered that Pacajes be held in prison under preventive detention for discussing the Fernandez case with friends, which the court qualified as a breach of duty. On October 10, Fernandez was released from prison and placed under house arrest. On November 16, a sentencing court granted Fernandez “pure and simple liberty,” meaning his movement was not restricted and he was no longer under arrest. The court simultaneously stated the judges and prosecutors involved in the case were corrupt, but authorities had not announced official judicial punishment for their actions. Fernandez was to undergo a process to have the initial sentence annulled.
f. Arbitrary or Unlawful Interference with Privacy, Family, Home, or Correspondence
The law prohibits such actions, and there were no reports that the government failed to respect these prohibitions.
There were credible reports that the ruling MAS party required government officials to profess party loyalty to the government or register formally as party members to obtain/retain employment or access to other government services.