Banfield murder trial LIVE UPDATES: Brendan Banfield to take the stand

FAIRFAX COUNTY, Va. - Court resumes Friday in the Brendan Banfield murder trial in Fairfax County, where the defense is expected to conclude witness testimony.

10:55 a.m. - Private Investigator testifying

A private investigator is testifying this morning about the contents of Christine Banfield's phone.

It's part of an ongoing effort by the defense to disrupt the prosecution's catfishing theory the case against Brendan Banfield is built on.

Attorney John Carroll also saying this morning that Brendan Banfield will be testifying, likely as their final witness in the case. 

What we know:

On Thursday, defense attorneys focused on what they described as a rift within the Fairfax County Police Department over early theories in the case. 

Several detectives took the stand as the defense attempted to show jurors there was disagreement within the department about how the investigation unfolded and that some officers were transferred after questioning the direction of the case.

READ MORE: Blood evidence, bodycam audio, and the defense strategy in the Banfield trial

Brendan Banfield murder trial: Defense highlights disputes over homicide investigation on Day 7

Day seven of the Brendan Banfield murder trial wrapped up on Thursday in Fairfax County. The defense put forward concerns about how the homicide investigation was conducted. FOX 5's Bob Barnard reports.

Banfield is accused of conspiring with his family’s au pair to kill his wife and a man allegedly lured to the home to be framed for the crime.

The defense is expected to conclude witness testimony Friday before the trial moves toward closing arguments.

READ MORE: Banfield murder trial LIVE UPDATES: Homicide detective says supervisors pushed catfish theory