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A 48-year-old Georgia woman led state troopers on a two-county chase at speeds of more than 100 mph shortly after 11 a.m. Saturday, Dec. 14, on SB I-75. The chase started north of Buena Vista Township and ended around 15 minutes later near Clio.

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SAGINAW COUNTY, MI -- Questions have been raised about the mental competency of the Georgian woman who, stark naked, led police on a two-county chase at speeds of more than 100 mph in mid-January, police say.

On Jan. 14, the 48-year-old led police on a chase that lasted around 15 minutes but covered more than 25 miles of Interstate 75, Michigan State Police Lt. David Kaiser said.

When police finally were able to take the woman into custody, they found she was naked and not making any sense.

The woman has since been released without restrictions from a medical facility where she had undergone a mental evaluation, Kaiser said.

Although the formal medical report has not yet been submitted, preliminary findings call into question the woman's competency to stand trial and her mental state at the time of the incident, Kaiser said.

Kaiser said blood tests found the woman had no alcohol in her system at the time of the chase, but police are still awaiting the toxicology report, which would determine what, if any, other drugs were present in her body.

If no drugs were present in her system and she is found to be incompetent to stand trial, the woman would not face criminal charges, Kaiser said.

The chase started the morning of Jan. 14 on southbound I-75 near Buena Vista Township when a vehicle passed a trooper at speeds of more than 100 mph.

The woman disregarded police attempts to signal her over and continued at high speeds until she reached the Vienna Road exit near Clio, Kaiser said.

She headed eastbound on the road, saw multiple police vehicles waiting there and then attempted to head back onto I-75, northbound this time, he said.

At the northbound I-75 on-ramp, a state trooper initiated a tactical driving maneuver, spinning the vehicle out and sending it into a light pole, then a ditch, enabling police to prevent the vehicle from driving off, Kaiser said.

No one was injured during the chase. While there were multiple close calls as the woman wove in and out of traffic at high speeds, she did not hit any vehicles, Kaiser said.

Because she does not pose a threat to society, Kaiser said, the woman was free from custody as police continue to investigate the incident and await finalized toxicology and medical reports.