The decision by the Supreme Court was written by Justice Ian Binnie. He began by noting that since "Andrews v. Law Society of British Columbia" (1989), comparator groups have been seen as being important to section 15 considerations. This means that a rights claimant is similar to one group, but has suffered differential treatment due to a different characteristic. This view was reaffirmed in "Lovelace v. Ontario" (2000). In this case, Binnie wrote that selecting the comparator group was not simply an initial step for section 15, and that each test for determining whether there has been discrimination should be done through comparisons. As questions of dignity or context are raised, the comparator group may be narrowed. Binnie felt this is what happened in the landmark section 15 case, "Law v. Canada" (1999). He went on to say that if, as section 15 tests are completed, it turns out the comparator group initially selected is not the most appropriate, a claim to section 15 may fail. Binnie referred to this situation as the "Achilles' heel" in section 15 precedent such as "Granovsky v. Canada (Minister of Employment and Immigration)" (2000).