Enlarge By Jesus Alcazar, AFP/Getty Images Twenty year old criminology student, Marisol Valles, speaks on the phone in her office in the northern Mexican border town of Praxedis G. Guerrero municipality on Wednesday. PRAXEDIS G. GUERRERO, Mexico (AP)  There's a new police chief in this violent borderland where drug gangs have killed public officials and terrified many citizens into fleeing: a 20-year-old woman who hasn't yet finished her criminology degree. Marisol Valles Garcia was sworn in Wednesday to bring law and order to a township of about 8,500 that has been transformed from a string of quiet farming communities into a lawless no man's land. Her predecessor was gunned down in July 2009 and the town had been unable to find a replacement for more than a year. Two rival gangs — the Juarez and Sinaloa drug cartels — have been battling for control of its single highway, a lucrative drug trafficking route along the Texas border. The tiny but energetic Valles Garcia, whose only police experience was a stint as a department secretary, says she wants her 13 officers to practice a special brand of community policing. She plans to hire more women — she currently has three — and assign each to a neighborhood to talk with families, promote civic values and detect potential crimes before they happen. "My people are out there going door to door, looking for criminals, and (in homes) where there are none, trying to teach values to the families," she said in her first official appearance on Wednesday. "The project is ... simple, based on values, principles and crime prevention in contacts house-by-house." Valles Garcia has been assigned two bodyguards but won't carry a gun. She says she will leave most of the decisions about weapons and tactics to the town's mayor, Jose Luis Guerrero. She didn't respond when asked why she seeks women to do the job. She wasn't even in the market to do it herself. But Guerrero solicited proposals from residents on how to make the town safer, and he liked hers so much, he offered her the chief's job. She took it, she said, because she loves the town where she has lived for 10 years, though she was born and has studied in Ciudad Juarez. Whether her decision is courageous or foolhardy, the appointment shows how desperate the situation has become in the Juarez Valley. Local residents say the drug gangs take over at night, riding through the towns in convoys of SUVs and pickups, assault rifles and even .50 caliber sniper rifles at the ready. The assistant mayor of nearby El Porvenir and the mayor of Distrito Bravos were killed recently even after they took refuge in nearby Ciudad Juarez. While the bullet holes that pockmarked police headquarters in Praxedis have been painted over, police buildings in other towns in the valley remain empty, with broken windows and few sign of life. Eight officers quit in fear two years ago, leaving only three when Valles Garcia took over. She hired 10 and will add five more. "Let's hope it is not a reckless act on her part," said Miguel Sarre, a professor who specializes in Mexican law enforcement at the Autonomous Technological Institute of Mexico. He said that "a municipal police force cannot protect itself against such powerful forces." Local residents like farmer Arturo Gomez are willing to give her a chance. "This is a town without law," Gomez said. "It is not likely things will change from one day to the next, but let's see what a woman can do ... things can't get any worse." Drug cartels in many drug-plagued parts of Mexico have killed or threatened police chiefs and their departments, buying off some officers and prompting some others to quit en masse. In past months, soldiers and then federal police largely took over patrols in the Juarez Valley, but they stick mainly to the main road, afraid to venture down unfamiliar dirt roads that are well-traveled by drug traffickers. "Here, everybody is afraid, and anything that can be done to remove that fear would be good," said Fidel Vega, a 46-year-old gas station employee. "You can see that this girl has a desire to get things done." But some question whether a young inexperienced chief can handle a problem that has stumped even Mexico's federal government: how to cope with the drug cartel threat and underpaid, untrained local police, who are easily corrupted by criminal gangs in Mexico's roughly 2,022 municipal police forces. President Felipe Calderon has recognized the problem faced by local police forces, whose officers earn average monthly salaries of only 4,000 pesos (about $300). Most of them have completed less than 10 years of schooling and are either at basic education levels or illiterate, according to the report. Calderon has proposed a "unified command" structure in which Mexico's 32 state governments would have state police take on the main responsibility, backed up by federal officers and soldiers where needed. While the cartels have been more than able to penetrate much tighter security details — killing mayors and police chiefs throughout northern Mexico — Valles Garcia says she isn't afraid. For residents, her personal courage may not be enough. Amalia Garcia, 58, had to send her five children to live in Ciudad Juarez for their safety, but now lives in Praxedis with her husband. "Whoever is here, man or woman, things are not going to change," said Garcia. "Things are bad here, and nobody pays any attention." ' Copyright 2010 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. 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