Answer by taking a quote from the following article:

Willie Nelson was born in Abbott, Texas on April 29, 1933, during the Great Depression, to Myrle Marie (nee Greenhaw) and Ira Doyle Nelson. He was born on April 29, but his birth was recorded by doctor F. D. Sims on April 30. He was named Willie by his cousin Mildred, who also chose Hugh as his middle name, in honor of her recently deceased younger brother. His parents moved from Arkansas in 1929, to look for work.

Nelson has been arrested several times for marijuana possession. The first occasion was in 1974 in Dallas, Texas. In 1977 after a tour with Hank Cochran, Nelson traveled to The Bahamas. Nelson and Cochran arrived late to the airport and boarded the flight without luggage. The bags were later sent to them. As Nelson and Cochran claimed their luggage in the Bahamas, a customs officer questioned Nelson after marijuana was found in a pair of his jeans. Nelson was arrested and jailed. As Cochran made arrangements to pay the bail, he took Nelson a six-pack of beer to his cell. Nelson was released a few hours later. Inebriated, he fell after he jumped celebrating and was taken to the emergency room. He then appeared before the judge, who dropped the charges but ordered Nelson to never return to the country.  In 1994, highway patrolmen found marijuana in his car near Waco, Texas. His requirement to appear in court prevented him attending the Grammy awards that year. While traveling to Ann W. Richards' funeral in 2006, Nelson, along with his manager and his sister, Bobbie, were arrested in St. Martin Parish, Louisiana and charged with possession of marijuana and hallucinogenic mushrooms. Nelson received six months probation.  On November 26, 2010, Nelson was arrested in Sierra Blanca, Texas, for possession of six ounces of marijuana found in his tour bus while traveling from Los Angeles back to Texas. He was released after paying bail of US$2,500. Prosecutor Kit Bramblett supported not sentencing Nelson to jail due to the small amount of marijuana involved, but suggested instead a US$100 fine and told Nelson that he would have him sing "Blue Eyes Crying in the Rain" for the court. Judge Becky Dean-Walker said that Nelson would have to pay the fine but not to perform the song, explaining that the prosecutor was joking. Nelson's lawyer Joe Turner reached an agreement with the prosecutor. Nelson was set to pay a US$500 fine to avoid a two-year jail sentence with a 30-day review period, which in case of another incident would end the agreement. The judge later rejected the agreement, claiming that Nelson was receiving preferential treatment for his celebrity status; the offense normally carried a one-year jail sentence. Bramblett declared that the case would remain open until it was either dismissed or the judge changed her opinion.

When did other arrests happen?
In 1977 after a tour with Hank Cochran, Nelson traveled to The Bahamas. Nelson and Cochran arrived late to the airport