A female fare evaded into the Pleasant Hill Station and began screaming and acting erratic. Officers arrived and detained the female. After giving several false names, Walnut Creek PD responded and used a portable fingerprint machine to identify the female. The female had two no bail warrants issued by Alameda County Sherriff's Department for theft and auto theft. The agent did not place the female under citizen's arrest for fare evasion. The female was booked on the warrants at the Martinez Detention Facility.