> OLG in shambles: Aldon Smith, former 49ers All-Pro defensive lineman, dies at age 36

Legal issues

2012
On January 28, 2012, Smith was arrested for driving under the influence in Miami Beach, Florida.

On June 30, Smith was believed to have suffered stab wounds when attempting to break up a fight at a party at his Santa Clara County residence. Two other people were shot in the incident. On October 9, 2013, Smith was charged with "three felony counts of illegal possession of an assault weapon" relating to the stabbing incident. The charges were later reduced to misdemeanors.

2013
On September 20, 2013, Smith was involved in a single-vehicle accident in San Jose, California. He was subsequently arrested on suspicion of driving under the influence and possession of marijuana. After a Week 3 27–7 loss to the Indianapolis Colts, Smith voluntarily entered a rehabilitation facility, to be put onto the non-football injury list with an indefinite leave of absence.

2014
On April 13, 2014, Smith was detained and arrested following an incident at the Los Angeles International Airport in which he became belligerent and uncooperative with a TSA agent, who alleged Smith claimed he was carrying a bomb. After interviews revealed that Smith did not clearly state he was carrying a bomb, the Los Angeles City Attorney decided to drop the charges. Smith was suspended for nine games in the 2014 season.

2015
On August 6, 2015, Smith was arrested in Santa Clara, California, for an alleged hit and run after driving under the influence, and vandalism charges. He was released by the 49ers the next day as a result.

2017
On March 9, 2017, Smith was a passenger with a friend driving to Smith's house at 12:00 am, when the San Francisco Police Department found out both Smith and the driver were under the influence after hitting a police car. Even though Smith was not the driver, both Smith and his friend were detained by the San Francisco Police Department for questioning. The next day, Smith and his friend were released and no arrests were made.

On September 23, 2017, it was announced that Smith had agreed to plead no contest to hit and run in the 2015 incident in exchange for the DUI charges being dropped. He was sentenced to 20 days in jail. During his sentence, Smith was ordered to attend a treatment facility and undergo anger management classes. After his release, Smith was prohibited from entering any bars or other establishments where alcohol is the primary commodity being sold.

2018
On March 3, 2018, a woman called the police from Smith's home and reported that he had consumed multiple bottles of tequila and then bit her wrists. Smith reportedly fled the home before police arrived. San Francisco police did not comment on the specifics, but did state that domestic violence of a "non-lethal" nature had occurred and they were seeking out Smith for questioning about the incident. On March 23, Smith was arrested for violation of a court order, where he was ordered to stay away from a woman he assaulted earlier in the month. The woman was revealed to be Smith's fiancée. This picked up from the previous incident that occurred on March 3, where Smith pleaded not guilty on four misdemeanor counts, including: domestic violence, assault with force likely to produce great bodily injury, false imprisonment, and vandalism. On April 8, he was arrested for violations in conditions to his bail.

2019
On June 11, 2019, Smith was stopped by police in Mission, Kansas for a traffic violation, and later arrested on suspicion of driving under the influence.

2021
On April 19, 2021, the St. Bernard Parish Sheriff's Office issued an arrest warrant for Smith for second-degree battery. Smith surrendered two days later and was released on a $25,000 bond with an arraignment scheduled for July 14.

On December 7, Smith was arrested for driving under the influence in San Mateo County. On April 7, 2023, he was sentenced to a year in jail after pleading no contest to a felony charge stemming from this incident.