NEW YORK (AP) – Jurors at the Martha Stewart trial listened Wednesday to a recording in which her stockbroker told investigators he had no advance word of the bad news that sent ImClone Systems stock tumbling.

In the interview with the Securities and Exchange Commission, broker Peter Bacanovic instead described what he said was a standing agreement with Stewart to sell her stock if it fell below a certain price.

Bacanovic said that a week before Stewart sold her stock in 2001, he asked her: “How low does this have to go before you’re prepared to part with it?” He said Stewart did not know, so he suggested $60.

The prosecution, which introduced the tape of the Feb. 13, 2002, interview, contends the $60 story is a lie. Bacanovic’s assistant testified earlier that the broker ordered him to alert Stewart that the family of ImClone CEO Sam Waksal was selling.

Earlier Wednesday, Stewart lawyer Robert Morvillo tried to show that SEC enforcement lawyer Helene Glotzer gave biased testimony because she has a rooting interest for the government.

Prosecutors placed Glotzer on the stand in hopes of laying the foundation for what they say are repeated lies by Stewart in 2002 about why she sold 3,928 shares of ImClone stock on Dec. 27, 2001.

Stewart told the SEC in 2002 that she did not remember being tipped that ImClone CEO Sam Waksal was trying to dump his shares on the same day that she did, according to Glotzer’s testimony.