Trial resumed on Friday for a Delaware doctor accused of "waterboarding" the 12-year-old daughter of his common law wife, the Patriot-News reported. 

The girl took her story to police, prompting charges against the accused, Melvin Morse, and his long-time companion, Pauline Morse.

Though the 60-year-old pediatrician claims he was only washing the girl's hair, his common law wife claims she did not find any shampoo and said he used "hair washing" as a threat for the girl. 

"He called it washing her hair, but I knew it wasn't washing her hair because there was no soap or anything," said Pauline Morse. According to The Associated Press, she pleaded guilty last year to misdemeanor child endangerment charges and agreed to testify against Melvin Morse.

On Thursday, the girl's mother testified that she witnessed Melvin Morse hold her daughter's head under the faucet before, causing him to jump and quickly let the girl go, who sat up coughing and choking. 

Pauline Morse will face more questioning from her common law husband's attorneys on Friday. 

If convicted, Melvin Morse could be sentenced up to 20 years in prison. 

Morse's medical license was suspended immediately following his arrest. He has written several books on paranormal science and near-death experiences involving children, leading to appearances on "Larry King Live" and "The Oprah Winfrey Show." His research was also shown in "Unsolved Mysteries" and a "Rolling Stone" article. 

The pediatrician also denied to authorities that he was experimenting on the girl.