Alabama has the highest per capita death penalty rate in the country. In some years, its courts impose more death sentences than Texas, a state that has a population five times as large.  However, Texas has more executions per capita.
When the prosecution seeks the death penalty, the sentence is decided by the jury and at least 10 jurors must concur.
Until 2017, Alabama was the only state which still allowed a judge to impose death against jury verdict in favor of life imprisonment. 
The method of execution is lethal injection, unless the condemned requests to be electrocuted. If the method selected by the offender or by default is held unconstitutional, state statutes provide the use of "any constitutional method of execution". 
The following kinds of murder are punishable by death in Alabama: 
- Murder by the defendant during a kidnapping in the first degree or an attempt thereof committed by the defendant.
- Murder by the defendant during a robbery in the first degree or an attempt thereof committed by the defendant.
- Murder by the defendant during a rape in the first or second degree or an attempt thereof committed by the defendant; or murder by the defendant during sodomy in the first or second degree or an attempt thereof committed by the defendant.
- Murder by the defendant during a burglary in the first or second degree or an attempt thereof committed by the defendant.
- Murder of any police officer, sheriff, deputy, state trooper, federal law enforcement officer, or any other state or federal peace officer of any kind, or prison or jail guard, while such officer or guard is on duty, regardless of whether the defendant knew or should have known the victim was an officer or guard on duty, or because of some official or job-related act or performance of such officer or guard.
- Murder committed while the defendant is under sentence of life imprisonment.
- Murder done for a pecuniary or other valuable consideration or pursuant to a contract or for hire.
- Murder committed during sexual abuse in the first or second degree or an attempt thereof committed by the defendant.
- Murder committed during arson in the first or second degree committed by the defendant; or murder by the defendant by means of explosives or explosion.
- Murder wherein two or more persons are murdered by the defendant by one act or pursuant to one scheme or course of conduct.
- Murder committed when the victim is a state or federal public official or former public official and the murder stems from or is caused by or is related to his official position, act, or capacity.
- Murder committed during the act of unlawfully assuming control of any aircraft by use of threats or force with intent to obtain any valuable consideration for the release of said aircraft or any passenger or crewmen thereon or to direct the route or movement of said aircraft, or otherwise exert control over said aircraft.
- Murder committed by an offender convicted of any other murder in the 20 years preceding the crime which constitutes the capital crime under Alabama law at the time;
- Murder is related to the capacity or role of the victim as a witness.
- Murder of a victim less than 14 years of age.
- Murder committed by or through the use of a deadly weapon fired or otherwise used from outside a dwelling while the victim is in a dwelling.
- Murder committed by or through the use of a deadly weapon while the victim is in a vehicle.
- Murder committed by or through the use of a deadly weapon fired or otherwise used within or from a vehicle.
- Murder by the defendant where a court had issued a protective order for the victim against the defendant.
Between 1812 and 1965, 708 people were executed in Alabama. Until 1927, hanging was the primary method of execution, although one person was shot.
In addition to murder, capital crimes in Alabama formerly included rape, arson, and robbery.  According to the Alabama Department of Corrections, 31 persons were executed by the state for crimes other than murder - including rape, robbery and burglary - between 1927 and 1959.  In Kennedy v. Louisiana, 554 U.S. 407 (2008), the U.S. Supreme Court has essentially eliminated the death penalty for any crime at the state level except murder.
The 1972 U.S. Supreme Court case Furman v. Georgia, requiring a degree of consistency in the application of the death penalty, established a de facto moratorium on capital punishment across the United States. That moratorium remained until July 2, 1976, when Gregg v. Georgia decided how states could impose death sentences without violating the Eighth Amendment's ban against cruel and unusual punishment. Alabama passed legislation reinstating use of the death penalty on March 25, 1976, when Alabama's legislature passed, and Governor George Wallace signed, a new death penalty statute. No execution under this law was carried out until 1983.
Holman Correctional Facility has a male death row that originally had a capacity of 20, but was expanded in the summer of 2000 with the addition of 200 single cells in the segregation unit.  The William E. Donaldson Correctional Facility has a male death row with a capacity of 24.  Donaldson's death row houses prisoners who need to stay in the Birmingham judicial district.  Julia Tutwiler Prison for Women houses the female death row.  All executions occur at Holman. 
From 1983 to April 2018, Alabama has executed 63 people.  As of 2018, Alabama had 191 inmates on death row, the 4th highest number in the US.  A governor has commuted only one death sentence since 1976: outgoing Governor Fob James commuted Judith Ann Neelley's death sentence to life in prison without parole in January 1999. 
- Rebecca Buckwalter-Poza (2014-07-27). "With Judges Overriding Death Penalty Cases, Alabama Is An Outlier". NPR.org. Retrieved 2016-07-21.
- "SB 16 To amend Sections 13A-5-45, 13A-5-46, and 13A-5-47, Code of Alabama 1975, relating to capital cases and to the determination of the sentence by courts; to prohibit a court from overriding a jury verdict". legislature.state.al.us. Retrieved April 12, 2017.
- "Alabama ends death penalty by judicial override". Associated Press at WBRL. 2017-04-11. Retrieved 2017-04-13.
- "SECTION 124 -Authority of governor to remit fines and forfeitures and grant reprieves, paroles, commutations of sentence and pardons; board of pardons; report by governor to legislature; pardons in cases of felonies and offenses involving moral turpitude". legislature.state.al.us. Retrieved April 9, 2017.
- "Section 15-18-82.1 - Method of execution; election of execution by electrocution; constitutionality". legislature.state.al.us. Retrieved April 9, 2017.
- Code of Alabama § 13A-5-49
- "Executions in Alabama". Web.archive.org. Archived from the original on 2002-06-14. Retrieved 2016-07-21.
- "Executions". Alabama Dept. of Corrections. Retrieved 21 January 2015.
"Annual Report Fiscal Year 2003" (PDF). Alabama Department of Corrections. 33/84. Retrieved August 15, 2010.
which also included a cellblock for 20 death row inmates." and "The death chamber is located at Holman where all executions are conducted." and "A major addition was completed in the summer of 2000 to add 200 single cells to the segregation unit. This addition was required to keep up with the increasing number of inmates on Death Row which had grown to more than 150.
"Annual Report Fiscal Year 2003" (PDF). Alabama Department of Corrections. 21/84. Retrieved August 15, 2010.
Donaldson has a death row unit with a capacity of 24 inmates.
- "Archived copy". Archived from the original on 2010-03-18. Retrieved 2010-10-08.
"Annual Report Fiscal Year 2003" (PDF). Alabama Department of Corrections. 45/84. Retrieved August 15, 2010.
Tutwiler also has a death row
- "Facts About The Death Penalty" (PDF). Deathpenaltyinfo.org. Retrieved 2018-02-20.
- "Clemency". Deathpenaltyinfo.org. Retrieved 2011-07-18.