The Constitution of Zimbabwe at Chapter 3, section 12...

The Constitution of Zimbabwe at Chapter 3, section 12, dealing with the protection of right to life states that: “No person shall be deprived of his life intentionally save in execution of the sentence of a court in respect of a criminal offence of which he has been convicted.”
After independence in 1980, there were nine offences which attracted the death penalty, but over the years they have been reduced to three. Currently, murder, treason and mutiny are punished by death under the Zimbabwean law.
Treason charges were brought against the opposition Movement for Democratic Change leader Morgan Tsvangirai in 2003. Tsvangirai denied allegedly plotting to kill President Robert Mugabe and stage a coup before the 2002 presidential polls. The year-long high profile trial was finally concluded on October 15, 2004, when Zimbabwe's High Court acquitted the Tsvangirai, saying the state had failed to prove its case beyond reasonable doubt.
The March 2002 presidential elections took place amidst widespread allegations of vote-rigging and intimidation of the opposition, which led the Commonwealth to suspend Zimbabwe’s membership. The Commonwealth had just decided to extend the sanctions at its annual summit when, on December 7, 2003, Mugabe decided to withdraw Zimbabwe from the association of former British colonies.
Rights activist John Dzvinamurungu, citing Zimbabwe Prisons Service figures, said of the total 244 people sentenced to death by the country's High Court between 1980 and 2001, 76 were executed. The rest had their sentences either commuted to life terms or quashed by the Supreme Court.
Executions were suspended for several years due to lack of a public hangman, but resumed in October 2001 when a candidate was covertly appointed. The last executions were those of four prisoners convicted of murder hanged in June 2003.
No executions were registered in Zimbabwe in 2004 and in 2005.
Zimbabwe voted against the resolution on the death  penalty approved by the UN Commission on Human Rights on April 20, 2005.