Fatal hit-and-run driver Rouxle Le Roux faces court again after allegedly breaching her home detention conditions.

Le Roux, 19, was convicted of killing a teenager Nathan Kraatskow at an Albany intersection in May. Le Roux, a learner driver, had consumed wine and cannabis earlier that day.

She was sentenced to 11 months' home detention and 250 hours of community service and was banned from driving for two-and-a-half years.

As part of Le Roux's sentencing, she is not to possess, consume or use any alcohol or non-prescription drugs, and also must be available if authorities come to her home.

However it's alleged that on February 20 she failed to respond when probation officers arrived twice, NZME reports.

She's been charged with failing to comply with the conditions of her sentence and must appear in court again.

Corrections says if offenders doesn't follow the conditions of their sentence they will "treat it very seriously".

As a result she's facing another conviction - or her sentence of home detention could be cancelled and she could be imprisoned.

Newshub has contacted the courts, which couldn't say when her court date would be, and contacted NZ Police to get confirmation of the charges.

What does home detention actually mean?

The Department of Corrections says home detention is both a "punitive and rehabilitation sentence".

It means the offender has to serve their sentence at a "suitable and approved residence" instead of in prison, allowing them to keep working, complete community work and rehabilitation programmes, and maintain family relationships.

Electronic monitoring equipment is installed at the offender's address, and they will normally wear an electronic anklet monitor, allowing them to be monitored 24 hours a day, seven days a week.

The offender will be supervised by a probation officer, who requires them to report regularly.

The Kraatskow family has previously expressed outrage at Le Roux's sentence, saying she has to go to jail for at least three years or she won't have "learned anything".

They might now get their wish.

Newshub.