A radiologist with professional ties to Massachusetts, New Hampshire, and Florida was arrested by Auburn police Sunday for illegal possession of a handgun and for allegedly offering to engage in sex for a fee, according to police and medical licensing records.
Sergeant Dan Lamoreaux pulled over Dr. Kang Lu, 42, on a routine traffic stop at 5:27 p.m. after Lu allegedly made a left turn from a right-turn only lane and the license plate light on his Toyota Prius was out, a Facebook post from Auburn police said.
Lamoreaux allegedly found Lu had a Glock 9 mm handgun and an ammunition magazine for the weapon, but not an active license to carry in Massachusetts, police wrote.
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“Lu was asked to produce a license for the firearm, but he told officers that he was not required to possess a license for any firearm and could ‘carry’ one under the 2nd Amendment of the Constitution of the United States,” the post said.
Auburn police Sergeant Richard Mills said Lu’s previous gun registration in Brookline from 2003 had been revoked and “to possess a firearm in Massachusetts, you need to be licensed in Massachusetts.”
According to US District Court records, Lu sued several police officers alleging his constitutional rights were violated when he was stopped for traffic violations in 2014 and 2015.
He claimed, according to his own account filed in court, that he did not need a valid driver’s license and invoked his 5th Amendment right against self-incrimination when asked to produce his license and registration.
The case was thrown out by a federal judge who ruled Lu had not raised a valid legal complaint. His appeal also was rejected by the First Circuit Court of Appeals, according to court records.
In the Auburn incident, when police stopped Lu’s car, a woman was riding in the front passenger seat and she initially said that Lu was her brother, a claim police questioned when they noted that Lu was Asian while the woman was not.
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The woman allegedly acknowledged that Lu had paid her to have sex with him, police said. The woman had multiple outstanding warrants for drug possession and was not charged in connection with the stop by Auburn police, officials said.
Lu was arraigned in Worcester District Court Monday. He is charged with possession of a large capacity firearm and large capacity feeding device, a fourth offense of possession of a firearm without a license, and engaging in sexual conduct for a fee, according to Worcester District Attorney Joseph D. Early Jr.’s office.
Lu was held without bail until a dangerousness hearing on Thursday, Early spokesman Timothy Connolly said.
According to physician profiles posted in Massachusetts, New Hampshire, and Florida, Lu is a graduate of the Boston University Medical School in 2005 who operates a private radiology practice. He lists Crestview, Fla., as his office, records show.
Sabrina Schnur can be reached at sabrina.schnur@globe.com. Follow her on Twitter @sabrina_schnur.