Robert Pickton told an undercover RCMP officer planted in his cell that police were considering laying 50 murder charges against him, the Mountie testified in court on Monday.

The officer had been placed in Pickton's jail cell under the pretense he was being held on attempted murder charges.

But the Mountie, who cannot be named by court order, told the New Westminster, B.C. jury he had been given no details about Pickton when he was planted in his cell.

Pickton told the officer he had been arrested on two counts of first-degree murder, the RCMP officer testified.

"He was concerned about this, said they were looking at another 50 charges against him with relation to this,'' the officer testified.

Pickton told the undercover officer that he was a pig farmer from Port Coquitlam and "also made some comments that he was supposed to get out of the pig farm and farming and now the farm was going to bury him,'' the officer testified.

He also expressed concern to the undercover Mountie that he would be hounded by the media.

The officer also said he told Pickton they were both being videotaped while in their cell, which was after the farmer's arrest some five years ago.

The Crown has already played a video of the police interrogation the pig farmer underwent after his arrest in 2002.

Last week, Pickton's lawyer suggested his client was unsophisticated, failed Grade 2 and did not fully understand questions and statements put to him under interrogation.

Defence lawyer Peter Ritchie told the court that Pickton was under the control of his brother and sister, his share of his parents' will was in trust, and police had information prior to the lengthy interview that he was "slow."

But RCMP Staff Sgt. Bill Fordy dismissed Ritchie's claims.

"I don't recall information about his ability to understanding things,'' said Fordy, one of the police officers who interrogated Pickton after his arrest.

Pickton faces first-degree murder charges in the slayings of six women, who are Marnie Frey, Sereena Abotsway, Georgina Papin, Andrea Joesbury, Brenda Wolfe and Mona Wilson.

Pickton also stands accused in the murders of 20 other women but no trial date has been set on those charges.

He has pleaded not guilty to all of the charges.