[2] In 2013 and 2014 he was part of the legal team representing Heather Wilson Duncan who was acquitted of second degree murder in shooting death of her husband, but convicted of manslaughter and receiving a four-year sentence.
[3] In 2017, Miller constitutionally challenged on behalf of a client the inability for persons accused with securities fraud to have a jury trial, and argued the same before the Supreme Court of Canada.
[8] That same year, Miller lead a coalition of Canadian lawyers seeking the prosecutor of International Criminal Court, Karim Khan, open a preliminary investigation on the Government of Canada and the Vatican for crimes against humanity over their involvement in the mass grave site discovered in Kamloops.
Miller and other lawyers maintained that the federal government and the Vatican suppressed their alleged crimes beyond 2002, amounting to a continuing offence.
"[16] Miller was later removed from the commission after arguing with and talking over Justice Rouleau regarding redacted records, outstanding motions, and calling of witnesses, but was let back in that day.
[17] Eventually by the end of the commission, Miller succeeded in forcing the government of Canada to resubmit unredacted copies of 20 documents to the inquiry.
[23] In Fall of 2023 Miller acted for the Blood Tribe at the Supreme Court of Canada regarding a large treaty land claim.