 A long term offender is a person where there is a substantial risk the offender will re-offend and be a danger to the community, but there is a reasonable possibility of eventually controlling the risk in the community.When sentenced as a long term offender, the defendant must first serve their prison sentence, and then be placed on a long-term supervision order in the community for a maximum of 10 years.If a person is convicted for their third or more offence found in section 752 of the "Criminal Code", the Crown can apply for the person to be declared a dangerous offender.