Bestine was the capital city of Tatooine during the Imperial period.
Before the arrival of the Empire, Bestine was primarily a farming and mining community. But following the rise of the Empire, Bestine became the seat of Imperial power on Tatooine. As a result, it was considered to be the most cosmopolitan and cultured settlement on Tatooine. It was, in many ways, considered to be a, "gem of Imperial politics."
Due largely to the influx of Imperial personnel and their credits, Bestine flourished while other cities on Tatooine struggled. Bestine was once a modest agrarian township, but had since grown to become a thriving economic hub. Bestine attracted a large number of honest merchants, interested in doing legitimate business. Bestine was also considered to be the safest of all cities on Tatooine. Imperial Stormtroopers would patrol the streets, defending citizens from thugs and random Tusken Raider attacks. While the city was considered very safe, it still was not completely devoid of thugs populating the slums of Bestine.
One location of note within the city was the Museum of Tatooine. The popular Barefoot Band would also regularly perform in Bestine's cantina. In addition to this, Bestine was the base of operations for the Imperial Storm Squadron. The Tatooine Visitors Bureau operated out of Bestine as well. Another location of note was a small Imperial garrison, which stood on top of a hill overlooking Bestine.
Following the destruction of the Death Star in 1 ABY, Bestine became embroiled in a heated political struggle between an ambitious Imperial officer and a powerful merchant. They were Victor Visalis and Sean Trenwell, the Officer of Defense and Director of Commerce respectively. Both campaigned intensively to gain votes, vying for the same position as Mayor of Bestine. Victor Visalis pledged to secure the metropolis with a surge of Stormtrooper patrols, so as to protect the city from the ongoing threat of Tusken Raider attacks. Sean Trenwell pledged to improve Bestine's marketplace, with the support of the long established Bestine merchants. Both were careful to remain in the good graces of Governor Tour Aryon, in order to benefit their election.
Because the elections were on-going, both had a chance to lead as mayor, and carry out their policies.
Bestine is mentioned by Biggs Darklighter in a deleted scene from A New Hope. He claimed that a friend of a friend knew someone who could help him and his friends make contact with the Rebel Alliance.