WOBURN, Mass. -- The defense team for the British man accused of killing his wife and baby said the judge is hurting their ability to pick an impartial jury by not allowing them to ask jurors how they feel about the man's use of Internet sex sites. Jury selection for the case began Monday.

Elliot Weinstein, an attorney for Neil Entwistle, said Monday that Judge Diane Kottmyer is not asking the right questions in the nine-page questionnaire that was given to perspective jurors.

Defense Cries Foul On First Day Of Entwistle Case | Entwistle Jury Selection Gets Under Way | Complete Coverage Of Trial

"Our concern here is that the questioning that the judge is doing is designed not to elicit the jurors' attitudes, but to foreclose the jurors from articulating their attitudes, and that's a problem," Weinstein said.

Weinstein also protested the judge's denial of his request to ask potential jurors how they feel about Entwistle's alleged visits to Web sites used for escort services and to connect people looking for sex. Prosecutors claim Entwistle trolled the Internet looking for sex in the weeks before the killings.

NewsCenter 5's Gail Huff reported that the case has sent shockwave across the world and set off a media frenzy. Entwistle is accused of shooting his wife, Rachel, and 9-month-old baby, Lillian, in January 2006.

On Jan. 21, 2006, Entwistle bought a one-way ticket to England on British Airways out of Logan Airport in Boston. The next day, police found the bodies of Rachel and Lillian in the family's rented Hopkinton home. Police arrested Entwistle in England two weeks later, charging him in the death of his wife and daughter. Two months later, he pleaded not guilty to murder charges.

On Monday, the judge told the pool of 170 potential jurors to be patient with the process. They were given questionnaires to determine if they were biased. A jury of 12 jurors, plus four alternates, will be chosen for the trial, which is expected to last about three weeks. Jury selection is expected to take three or four days.

Entwistle was escorted by heavy security past scores of reporters -- many from England -- into the Middlesex Superior Courthouse on Monday morning.

"It is a lot of interest in this back home. It has all the ingredients you want in a story -- sex, money, the crumbling of a marriage before your very eyes. That created a lot of interest in the U.K.," said reporter Philip Brewster, of ITV Central News.

Prosecutors said that Entwistle's mounting debt and dissatisfaction with his sex life were motives in the slayings.

Weinstein arrived at the court Monday morning with numerous boxes of legal briefs.

Late last week, a judge rejected a defense request to move the case to Martha's Vineyard. The defense argued intense media coverage of the case has made it impossible for Entwistle to find an impartial jury -- an argument that is likely to surface again.

Rachel Entwistle's family is expected to be in court every day.