Sydney - An Australian law lecturer was jailed Monday for contempt of court after pulling down her trousers and baring her buttocks to the presiding judge.

Megumi Ogawa, 41, was sentenced to four months' jail in a Brisbane court for what Judge Stuart Durward said was "disgusting behaviour" at an earlier trial where she was found guilty of harassing court officials.

During the earlier trial, the court was told the Southern Cross University staff member threatened court officials with death and sent them 83 emails and made 176 phone calls.

Ogawa, a Japanese national, conducted her own defence at both trials.

It took three security officers to carry a kicking and screaming Ogawa into the dock so she could be present at her sentencing. (dpa)