Karen Read's defense counsel under scrutiny over expert witnesses

Catch up quick: Prosecutors asked Judge Beverly J. Cannone to exclude the testimony of experts Daniel Wolfe and Andrew Rentschler from the consulting firm ARCCA.

• They testified that her boyfriend John O'Keefe's injuries weren't consistent with being hit by her car. Prosecutors say she struck him and left him to die.
• At the time, Wolfe told Read's attorney, Alan Jackson, on the stand that "you have not paid us anything," the Boston Globe reported.
• But prosecutors say the experts billed the defense counsel $23,000, per the Globe.

What they're saying: "I don't care about their opinions, but I care that it's unfair, imbalanced and hidden, and the Commonwealth — like the defense — is entitled to discovery," special prosecutor Hank Brennan said in court.

Between the lines: The latest details raised questions about the defense's strategy.

• When Cannone suspended the hearing, she expressed "grave concern" over information she said may have "profound effects" on the defense.

The other side: Jackson denied paying the traffic experts for their testimony after the hearing.

Prosecutors are seeking to bar their testimony, which may include communications between ARCCA and the federal government as part of an investigation that looked into state troopers' handling of the Read case.

• ARCCA's contract with the feds has ended, but prosecutors say the feds insisted the materials from the federal probe remain protected, per NBC Boston.

What's next: The hearing that ended abruptly on Tuesday was rescheduled to next week.

• Read's second trial is expected to start in April.