The estranged husband of a missing Connecticut mom and his girlfriend arrived in court Monday to face charges of tampering with evidence and hindering prosecution in what is now being called a homicide case.

Fotis Dulos, 51, was hauled into Norwalk Superior Court, shackled and under police guard, for his arraignment. He wore an orange prison jumpsuit and kept his head down to try to avoid the cameras.

His gal pal, Michelle Troconis, 44, was taken to court separately in a black police car. She was dressed in a blue and white shirt, black pants and sneakers and also kept her head bowed as she was led inside by police.

The pair was arrested Saturday night, more than a week after Dulos’ wife, mom of five Jennifer Dulos, 50, disappeared after dropping their kids off at school near her home in New Canaan.

Jennifer filed for divorce from her wealthy real estate developer hubby in 2017, and the pair have been embroiled in a vicious court and custody battle ever since.

Police sources have said they are treating the case as a homicide and have launched an interstate search for Jennifer’s body.

A large truck from the Connecticut State Police Major Crime Squad pulled up in front of the mansion that Fotis and Tronconis share in Farmington, Conn., on Monday morning, and detectives went inside.

Additional reporting by Kevin Sheehan