@anemone a serious violent crime or organized crime not just a petty crime is only way to expulse you and I think as permanent resident they take into account how connected you are to the country, if your primary residence is here and how long you lived here even if the crime is serious. The are many foreigners that commit fraud even rape or drug dealing that aren't sent back because they got permanent residency. Some even live off crime so unless it's murder you are ok