Anti - Terrorism Unit The Anti - Terrorism Unit , also known as the Anti - Terrorist Unit or simply ATU , was a specialized police division of the Coruscant Security Force designed to perform counter - intelligence work and combat terrorist activities on the planet Coruscant . Though geared more toward defensive and investigative missions , as opposed to offensive planning , ATU police officers were well trained in counter - intelligence and tactical operations . The ATU itself was one of the most powerful units in the CSF in terms of jurisdiction and authority . Likewise , the ATU ' s commanding captain was one of the most influential officers in the CSF . The ATU responded to several terrorist threats notably during the Clone Wars between the Galactic Republic and the Confederacy of Independent Systems . During that time , the ATU was led by Captain Jaller Obrim , formerly of the Senate Guard . Obrim and the ATU worked closely with Republic commandos to shut down a terrorist network , and their close relationship continued until the end of the war . At that point , the ATU was absorbed into the Imperial Security Bureau and its functions transferred into other departments . The ATU was later reestablished by the CSF under the newly formed Galactic Federation of Free Alliances . Shortly before the Second Galactic Civil War between the Galactic Alliance and the Confederation , several attacks and riots heightened tensions between the Coruscanti and their fellow Corellian citizens . While the ATU , under the leadership of Captain Lon Shevu , had begun to identify potential suspects and terrorists , the GA government decided to form a secret police called the Galactic Alliance Guard to better facilitate investigating and interning Corellians on Coruscant . Several cops from the ATU , including Shevu , joined the new GAG . However , most of the ATU cops left as the war continued and the GAG ' s methods became increasingly brutal and morally unjust . Description . The Anti - Terrorism Unit , abbreviated as the ATU and also referred to as the Anti - Terrorist Unit , was a specialized police counter - intelligence division of the Coruscant Security Force . It worked closely with the Organized Crime Unit to develop intelligence on criminal and terrorist organizations , with the intent of preventing attacks against the planet Coruscant . The ATU had an expansive jurisdiction and vast legal authority , making it one of the most powerful CSF divisions . The captain in charge of the ATU was subsequently one of the CSF ' s most influential commanding officers . However , leading the ATU was also a heavy responsibility . It was not uncommon for the commanding captain to spend days at the Coruscant Security Force Headquarters when a major investigation was underway . The ATU gained more and more authority as the Clone Wars between the Galactic Republic and the Confederacy of Independent Systems intensified . Wiretaps and spying without reasonable evidence and of those who posed no threat became commonplace , and ATU police officers could seize property without a warrant . Though ATU cops had training and experience in tactical operations , the ATU was intentionally designed as a civilian organization , and the division itself did not have the setup of a paramilitary force . While that put the ATU on the defensive more so than on the offensive , it prevented the ATU from gaining a reputation as a brutal , secret police service . When some in the Galactic Alliance government sought to militarize the unit and give it the official duties of a secret police , the suggestions were quickly dismissed . History . Major attacks . The Anti - Terrorism Unit was organized before the start of the Clone Wars . Though assassinations and bombings had occurred on Coruscant before , the Clone Wars brought a new and heightened danger to the streets of Galactic City . The first , most disastrous terrorist attack was an explosion in the Administrative Sector in 22 BBY which killed several thousand citizens . The CSF responded by setting up checkpoints and closing down areas around the explosion to begin their investigation . The death toll and incident reconstruction completely overwhelmed the CSF and its anti - terrorism investigators , who struggled to identify and catalog the remains . Throughout the first year of the war , the Separatists initiated a brutal terrorist campaign on Coruscant with most of the targets belonging to the Grand Army of the Republic ( GAR ) . By 21 BBY , the death toll resulting from the attacks numbered at approximately three thousand and forty beings . During that year , Captain Jaller Obrim , a twenty - eight year veteran with the Senate Guard , was second to the CSF and placed in command of the Anti - Terrorism Unit . A few days before the anniversary of the start of the war , an explosion of a transport speeder killed fifteen clone troopers , and the ATU began the task of investigating the crime scene in conjunction with the CSF Forensics Unit . To assist them , the ATU requested the help of the GAR ' s Special Operations Brigade , specifically Sergeant Kal Skirata and Advanced Recon Commando Captain Ordo , along with Jedi Knight Bardan Jusik who was specialized in explosives . Together they investigated the area with the CSF ' s Scenes of Crimes Officer s . In the aftermath of the Depot Bravo Five attack , Director of Special Forces Arligan Zey unofficially and secretly authorized Skirata to conduct an operation to uncover the terrorists . Along with clone commandos from Omega Squad and Delta Squad , they began tracking the terrorist cells . The CSF ' s Organized Crime Unit came close to focusing an investigation on the commandos who got into the crossfire of underworld thug s . However , Obrim was able to deflect the investigation away from the commandos , allowing them to continue their mission . The commandos eventually located the terrorists , and in a joint venture with the CSF ' s ATU and OCU , they conducted raids that brought down the terrorist network . Increased authority . On a mission to the planet Gaftikar , clone commando RC - 8015 , or " Fi , " sustained a serious brain injury and was taken to Coruscant ' s Republic Central Medcenter . Kal Skirata asked Republic Treasury Agent Besany Wennen to keep an eye on Fi , and she discovered that the medical droids intended to euthanize Fi since they had declared him brain - dead . Wennen threatened the medical droids with her blaster , forced them out of Fi ' s hospital room , and shot the lock to seal herself and Fi inside . In the resulting standoff , Skirata called Obrim for a rescue , and Obrim responded with several CSF patrol officers and half of the shift from the ATU . In a large display of weapons and armor , Obrim and the CSF entered the medcenter , stormed the hallway , and escorted Wennen and Fi out of the room . When they reached the lobby , they were stopped by a medical droid who insisted they had no right to remove the unconscious Fi . Threatening that he would release embarrassing information about the droid ' s boss , Obrim was able to secure Fi ' s release . Along with Wennen , they left the medical center under heavy guard by the CSF . In the closing days of the Clone Wars in 19 BBY , an invasion of Coruscant by the Separatists left the Republic reeling , and Obrim spent several days at the CSF Headquarters coordinating the response efforts after the battle was over . When Order 66 was issued by Supreme Chancellor Palpatine , declaring all Jedi as enemies of the state , the ATU received instructions — along with the rest of the CSF — that their standing order to comply with the Jedi Order had been rescinded . Additionally , if they spotted any Jedi , they were to keep their distance and notify the military . However , due to the close relationship that many CSF and ATU officers had with Skirata and the Jedi who worked with him , several CSF officers , including Obrim , helped Jedi escape the ensuing purge . Obrim assured Skirata that he could also ensure the loyalty of the ATU when Skirata began helping clone troopers desert the GAR . Soon after the establishment of the Galactic Empire , the ATU was absorbed into the new Imperial Security Bureau . Ironically , few in the CSF , including the former ATU members in the ISB , cared much for the new Empire . Later , Coruscant ' s law enforcement community would subsequently undergo a thorough investigation for anti - Imperial pockets . From his new ISB post in an old CSF building , Obrim continued to provide support to Skirata as well as to the underground , anti - Imperial organization , Whiplash . A new civil war . After the end of the galaxy - wide Yuuzhan Vong War in 29 ABY and the formation of the Galactic Federation of Free Alliances , the CSF reestablished the Anti - Terrorism Unit . In 40 ABY , due to an increase in hostilities between the governments of the planet Corellia and the Galactic Alliance , a series of terrorist attacks by Corellian sympathizers and revenge attacks by Coruscanti plagued the Galactic Alliance capital . The ATU , under CSF Captain Lon Shevu , had initiated response efforts from the Galactic City Strategic Center . As the riots and attacks increased , the Galactic Alliance contemplated the internment of all Corellians and their sympathizers living on Coruscant . To begin the new security responses , Chief of State Cal Omas offered command of the ATU to Jedi Jacen Solo along with a commission of colonel . However , Solo felt it would would be better to have an agency separate from CSF conduct the raids and internment . That would allow the CSF to keep a relative image of neutrality and allow them to focus on general policing . Agreeing , the Alliance government formed the Galactic Alliance Guard . CSF officers from the ATU accompanied the 967 Commando unit , which was transferred to the new GAG , on the first internment raid in the Jabi Town section of Coruscant . Solo requested that Captain Shevu be transferred to the GAG , and several members of the ATU joined as well , all of whom were trusted and vouched for by Shevu . The tensions between the Galactic Alliance and Corellia quickly erupted into open war . The former ATU officers brought their expertise in counterintelligence to the GAG , and several terrorist networks on Coruscant were quickly shut down . As the war continued , Solo became the Dark Lord of the Sith Darth Caedus and , along with Supreme Commander Cha Niathal , staged a coup ousting Cal Omas from office . The methods and tactics of the GAG became more brutal and less professional . Most of the former ATU officers left the GAG in disgust , and its ranks were filled with thug - like soldiers . To undermine Caedus , Shevu remained with the GAG , though he missed his old job with the CSF and was eventually exposed and killed . By the time the war ended and the GAG was dismantled , it resembled little of the ATU ' s model of a professional intelligence and police service that the GAG had striven to emulate . Notable members . Jaller Obrim . Jaller Obrim was a Senate Guard who , during the Clone Wars , was transferred to and placed in command of the CSF ' s Anti - Terrorism Unit . While there , he formed a close relationship with Kal Skirata and several of the clone commandos . Together , they were able to dismantle a terror network on Coruscant and arrest its members . Although Obrim was a dedicated police officer , he was not above bending or breaking the rules if he felt that it was the right thing to do . Due to his high position in law enforcement , he was capable of helping Skirata ' s black ops mishaps disappear from official records . On one occasion , he used his authority to escort an injured Fi out of a hospital as a favor for Skirata . Obrim was one of the few non - clones trusted with Skirata ' s plans to help clone soldiers desert from the Grand Army of the Republic . Although he refused to hear specifics for reasons of deniability , he helped Skirata and his clan escape when Palpatine issued a warrant for the arrest of Skirata . Obrim was also well aware of the dangers of being a police officer on Coruscant , and he had a security system in his house to protect his family from the many enemies he had made during his career . Lon Shevu . Captain Lon Shevu was the commander of the Anti - Terrorism Unit before the Second Galactic Civil War and was in charge of the emergency response center for Galactic City until he was transferred to the GAG . He was a dedicated police officer who was known for not shying away from tough situations . He had strong principles on how to treat suspects and how a police force should operate . Shevu thus did not approve of Jacen Solo ' s methods , including Solo ' s treatment of his young , fourteen - year - old Jedi apprentice Ben Skywalker as an adult , and Solo ' s brutal interrogation methods . Eventually , that turned Shevu into a double agent ; he used his high position in the GAG to spy on Solo for Cha Niathal and the Jedi . Shevu missed his job with the CSF and wanted to return to it , but he was accidentally killed by the Sith apprentice Tahiri Veila , who released Force lightning at him in an attempt to force Skywalker to reveal information . Behind the scenes . The Anti - Terrorism Unit first appeared in the novel " " , written by Karen Traviss and published on February 28 , 2006 . The ATU appeared continually throughout Traviss ' s " Republic Commando " series , including the novels " " , published on October 30 , 2007 ; " " , published on September 16 , 2008 ; and the series spin - off published on October 27 , 2009 : " . " In " 501st " , it was revealed that the ATU had been made a part of the Imperial Security Bureau . The ATU also made a significant appearance in " " , written by Traviss and published on August 29 , 2006 . The leadership of the ATU incites a pivotal decision in the " Legacy of the Force " series . During discussion , the characters choose to form the Galactic Alliance Guard in order to avoid using civilian police as a secret police . The formation of the Guard sets the stage for many of the events leading up to Jacen Solo ' s fall to the dark side and takeover as the GA Chief of State .