The Crown in the Thomas Hamp murder trial in Saskatoon is suggesting the 28-year-old was in a drug-induced psychosis when he killed his partner Emily Sanche three years ago.

Prosecutor Cory Bliss raised the theory while cross-examining defence witness Shabehram Lohrasbe, a forensic psychiatrist who did an assessment on Hamp, who is charged with second-degree murder and on trial at Court of King's Bench before Justice Grant Currie.

Lohrasbe did not disagree with Bliss, noting "this reality poses a…