GUILDERLAND — Town resident Jonathan Cobb pleaded not guilty and paid $10,000 bail at his arraignment in Guilderland Town Court Thursday night. He is accused of raping an 18-year-old woman who was, according to police, unable to give consent because she was intoxicated.

Police say Cobb, 51, of 432 Danna Joelle Dr., gave alcohol to his daughter’s guests at the home, including a 16-year-old girl and, for that, was also charged with unlawfully dealing with a child.

In court, Judge John Bailey noted that Collin D’Arcy of the Albany County District Attorney’s office had asked for $10,000 bail and that he was inclined to grant that request “because,” Bailey said, “these are very serious charges.”

Cobb’s lawyer, Philip C. Miller, asked Bailey to set a lower amount or not require bail at all, arguing Cobb owned his own home and business and had four children, all of whom live with him. For all those reasons, Miller said, Cobb is not a flight risk. Miller said that Cobb would be willing to surrender his passport.

This was Cobb’s first charge, Miller said, “other than an AI [driving while ability impaired] in 2000.”

Bailey said that he believed Cobb was a flight risk, because of the seriousness of the charges and because owning his own home and business suggested that he might have the financial means to flee.

The district attorney’s office asked for an order of protection, and Bailey made it a full stay-away order. Miller said to Bailey, “The circumstances in which this alleged incident took place are very strange. A full stay-away is not going to bother us at all.”

Cobb was charged with third-degree rape and third-degree criminal sexual act, both felonies; he was charged earlier, in connection with the same gathering at his home, with first-degree unlawfully dealing with a child for supplying alcohol to the 16-year-old, according to Guilderland’s Deputy Chief of Police, Curtis Cox.

On Friday, Cox described how the events unfolded:

On the weekend, Cobb’s daughter invited some people over to their house. During the course of an evening, Cox said, Cobb gave alcoholic beverages to the visitors, one of whom was 16. “We received a complaint and conducted an investigation, so we charged Mr. Cobb with unlawfully dealing with a minor, for giving alcohol to the 16-year-old,” Cox said.

The 16-year-old said she had been offered alcoholic beverages by Cobb; that first arrest occurred on Jan. 28, and Cobb was released on an appearance ticket, the deputy chief said.

Later, police conducted a second investigation, after one of the other visitors to the home, who was 18 years old, received medical treatment for being raped, Cox said; police then arrested Cobb Thursday night for rape and a criminal sex act.

“The rape charge,” Cox said, “is based on the inability to consent because of intoxication.” The victim was not necessarily unconscious, Cox said, but was intoxicated and “unable to consent.”

Cox declined to say how police settled on Cobb — including whether the 18-year-old visitor had identified him or there had been a witness.

Cox said that if any other victims have had contact with Cobb, they should contact police; he emphasized that police have no evidence to suggest that there are other victims.

Cobb owns a company called Waypoint Technology Group that, according to its website, provides “professional positioning solutions based on GPS/GNSS, optica/robotic, and laser measurement technologies.” Customers include government agencies, engineering firms, and scientific organizations. Its office is listed on the website as 17 Computer Dr. East, Albany.

Asked if a defendant who is a highly educated professional would be treated in the same way as anyone else accused of rape, Cox said, “Absolutely. This is about the victims.” He said that police do not take into consideration factors like where a defendant lives, or his social class or religion.

Reached by phone, Miller declined to comment. Messages left at Cobb’s home and workplace were not returned.

He is due back in town court on Feb. 23.

Anyone with additional information is asked to contact the Guilderland Police Department Criminal Investigation Unit at (518) 356-1501.