BELLEVUE, WA -- A Bellevue business executive charged with lying to a grand jury about strip club sex acts says contacting a stripper who's a witness in the case was a "colossal mistake."

Intelius co-founder John Kenneth Arnold apologized to a U.S. magistrate judge in Seattle on Monday. He was arrested last Thursday for sending a letter to the stripper and making plans to meet with her in Las Vegas, in clear violation of the terms of his pre-trial release.

Prosecutors insisted that Arnold's word is worthless, and asked Magistrate Judge Brian A. Tsuchida to order him detained pending trial.

The judge instead released him to the custody of his wife on electronic monitoring. The judge ordered that he not travel anywhere other than his home, work, court, church and lawyer's office.

Arnold's grand jury testimony was part of a racketeering investigation of Seattle strip club boss Frank Colacurcio Sr.

Arnold allegedly lied when he testified that he never engaged in sex acts with dancers at Rick's strip club.