Officer Terry Mahan has been placed onadministrative leave after a Tuesday incident in which he tased a womanin the back while she walked away from him.A Tallahassee police officer was placed on administrative leave aftertasing a 62-year-old woman in the back Tuesday afternoon during anincident caught on cell-phone video.The woman, Viola Young, wastreated at the scene and taken to the Leon County Jail on a charge ofresisting an officer without violence, along with three others.Tallahassee Police Chief Michael DeLeo announced the incidentinvolving Officer Terry Mahan and an internal-affairs investigation intothe tasing during a news conference he called in the middle of thenight. Mahan will be on leave pending the outcome of the investigation."Basedon the video, I have enough concerns to call for an internalinvestigation and have Officer Mahan put on administrative leave pendingthe outcome of the investigation," DeLeo said during the newsconference, which was held about 3:15 a.m. at TPD headquarters. "We willconduct a thorough investigation into this incident. We want to betransparent with the community by sharing what we can at this point."DeLeo added that, "The investigation will determine if the officer'sactions were legal and if those actions were consistent with theexpectations I have set for our officers in terms of how we respect andtreat our citizens."The incident is the latest to raise questionsabout the Tallahassee Police Department's use-of-force tactics. Earlierthis month, Tallahassee city commissioners voted to settle a federallawsuit for $475,000 brought by Christina West, a Tallahassee woman whosuffered broken bones and other injuries during her DUI arrest in August2013.In that case, which was caught on TPD dash-cam video, Westalleged her civil rights had been violated and excessive force usedduring her arrest, which happened after she crashed her SUV into anunoccupied home. Four officers were suspended and one, Chris Ormerod,was later fired, though it was over unrelated traffic crashes.TheWest case led to the ouster of TPD Chief Dennis Jones. DeLeo, hiredlate last year, has since been trying to repair the Police Department'srelationship with the community. TPD also changed its use-of-forceprotocols, calling for officers to "de-escalate" encounters withcitizens or suspects.In Tuesday's incident, officers werepatrolling the 500 block of Dunn Street off Old Bainbridge Road shortlyafter 5 p.m., DeLeo said in the news conference.Several peoplewere walking in the street but moved out of the way when another officerdrove past them. They walked back into the street behind behind theofficer, who then pulled over and approached them. Police reports saythe people were blocking traffic.The officer, according to courtdocuments, got out of his car and approached Quontarrious Jones, 23, andordered him to stop walking multiple times. Jones was arrested on acharge of resisting without violence.While Jones was beingarrested, Laguna Young, 41, and Quaneshia Rivers, 20, both startedyelling at the officers. They, too, were arrested for resisting withoutviolence. Young also was arrested on a charge of probation violation.Shortlyafter the arrests, Viola Young approached officers and started yellingat them as they commanded a crowd to stay back from the area. Mahan toldher to stay back."I just want to know what is going on," she shouted at officers.Mahan told her she was under arrest, but Young moved away from him.As she was walking away, Mahan pulled out his taser and fired it intoher back. Young appeared on the video to fall face-first into thepavement as neighbors watched. She rolled over onto her back whilemoving her arms. Police handcuffed her and put her in the back of asquad car.Mahan, in a probable-cause affidavit, explained what led to the use of force on Young."ViolaYoung caused me to take my focus off of one of the arrestees and engageher," Mahan wrote. "Young's actions obstructed officers while in thecourse of completing their legal duties."