Ken Kratz became a well-known prosecutor after he appeared in the Netflix documentary series Making a Murderer. The former district attorney of Calumet County, Wisconsin tried Steven Avery for the 2005 murder of Teresa Halbach, receiving a conviction and putting Avery behind bars for life without the possibility of parole. However, some question the tactics Kratz and his team used, accusing them of planting evidence to set up Avery because he was in the process of suing them for $36 million after a previous wrongful conviction. Watch more here.

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Kratz found himself in the middle of a legal scandal a few years later, when he was accused of inappropriately texting a crime victim – leaving some questioning if he had misbehaved then, did he use questionable judgment in Steven Avery’s case?

WATCH: Former Prosecutor Featured In ‘Making A Murderer’: ‘I’m Here To Set The Record Straight’

In the video above from Monday’s episode of Dr. Phil, Kratz explains how a dependence on prescription pills and sexual compulsivity led him to a run-in with the law. And he defends his actions in the Avery case.

“There is nothing, no evidence, no suggestion that any of these behaviors were present during or before the Avery trial,” Kratz says.

WATCH: 6 Reasons Former Prosecutor Says He Believes 'Making A Murderer' Subject Steven Avery Is Guilty

On Monday’s episode, Kratz comes face-to-face with Avery’s former defense attorney, Jerry Buting, for the first time in 10 years. And, hear details about Avery’s case that Kratz claims were left out of the documentary series. Check here to see where you can watch.

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Why Attorney Featured In ‘Making A Murderer’ Blames Prosecutor For Steven Avery Not Getting A Fair Trial