A 17-year-old District youth, sought in connection with a Dec. 3 shooting in which the victim is clinging to life, was being held without bond yesterday in Montgomery County on charges of drug conspiracy and distribution and assault on a law enforcement officer.

John L. Roane was arrested without incident Thursday at a girlfriend's home in Silver Spring, said Sgt. Ronald Frye, head of the fugitive-warrant section of the county Sheriff's Department.

A judge Tuesday issued a warrant for Roane after he failed to show up for a Nov. 30 court hearing. Roane was indicted as an adult in June in Montgomery County on charges including possession with intent to distribute cocaine, conspiracy to distribute cocaine and use of a firearm in a drug trafficking crime. He also was charged with assault on a law enforcement officer during the arrest in the February incident.

Yesterday, Circuit Court Judge William M. Cave ordered Roane held without bond pending a Jan. 21 trial on the Montgomery County charges.

Roane, dressed in a green county-issued jumpsuit, remained silent at yesterday's hearing. His lawyer, Victor Houlon, was not present, but a lawyer with the county's Public Defender's Office advised Roane.

Roane's case underscores the difficulty the criminal justice system confronts when a defendant's alleged offenses cross jurisdictional lines.

In urging Cave to jail Roane, Montgomery County Deputy State's Attorney Matthew Campbell said he tried twice to obtain an address for Roane. Campbell said Roane told the court he lived with his mother in Southeast Washington. But in a motion filed Thursday to revoke Roane's bond, Campbell said Roane's older brother told law enforcement officers Dec. 4 that the defendant had never lived at that address.

Montgomery prosecutors tried unsuccessfully in August to revoke Roane's $50,000 bond after they found that Roane was wanted in the District in connection with a July 16 shooting in Northwest Washington, according to court documents.

Yesterday, Campbell cited two additional alleged offenses as grounds to deny bail to Roane. Campbell said Roane had been arrested Nov. 21 in the District on drug and handgun charges stemming from a traffic stop in which police found two high-powered pistols and 500 grams of cocaine in a 1989 Porsche 928 driven by Roane.

Campbell also said yesterday that District police had an arrest warrant charging Roane with assault with intent to kill as a result of his alleged participation in a Dec. 3 shooting on Lamont Street in Northwest Washington. A source said the victim, Fred Bennett, was shot twice in the head and was not expected to survive. Campbell said in court yesterday that Roane ordered an accomplice to shoot Bennett, telling the alleged gunman, "If you don't shoot, I will."