https://www.innocencecanada.com/exonerations/thomas-sophonow/"Moreover, when Mr. Doerksen first attended a line-up that included Thomas [Sophonow], he did not identify anyone – including Thomas – as the killer whom he had pursued. Two days later, however, Mr. Doerksen coincidentally saw Thomas while they were both in the Public Safety Building. By that time, Mr. Doerksen had read a newspaper that contained Thomas’ picture. He came to believe that Thomas actually was the person he had seen fleeing the donut shop, even though his appearance was essentially the same as it had been during the line-up. At the Inquiry, Dr. Loftus explained that as time passes, people not only forget information – they also become more susceptible to forming false recollections as a result of new information that they learned after the event. Furthermore, we now know that in 1982, Mr. Doerksen was not able to see well at night or in poor lighting conditions.[21]
"Furthermore, two of the Crown’s witnesses identified Thomas after being shown a photo line-up in which his picture stood out dramatically from the others. As Justice Cory put it in the Inquiry report, “The differences in Thomas Sophonow’s pictures are such that it might just as well have carried a notation saying, ‘here I am.’” As a result, this photo line-up was “startlingly unfair.” And finally, two of the witnesses who testified at trial that Thomas was the killer had not in fact been able to identify him during the live line-up that they observed. Rather, both witnesses merely thought that he was the best match as compared to the other people in the line-up. The officer conducting one of these line-ups made the situation worse by informing the witness that he had indeed picked out the current suspect, thereby strengthening his confidence in his incorrect identification. Given this incredible range of problems with the eyewitness testimony used to convict Thomas on two occasions, it is perhaps not surprising that a miscarriage of justice occurred.[22]" Link
Two points of comparison between Canada's Thomas Sophonow and Scotland's Luke Mitchell are worth emphasizing. One is that seeing a suspect in a newspaper photo increases the chances that the eyewitness will transplant his or her image on the memory of the crime. Two is that photo lineups are not infrequently constructed in such a way as to point to the suspect.
https://www.millerthomson.com/assets/files/article_attachments/Wrongful_Convictions_in_Canada.pdf"The alibi witnesses should not be subjected to cross-examination or suggestions by the police that they are mistaken. The alibi witnesses should be treated with respect and courtesy. They should not be threatened or intimidated or influenced to change their position. However, I agree that it is appropriate for the police to instruct the witnesses that it is essential that they tell the truth and that a statement can be used as proof of its contents. The witnesses should be advised that they should be careful to tell the truth and of the consequences of a failure to do so."
This is one of the recommendations of the commission which reviewed the wrongful conviction of Thomas Sophonow in Canada. The contrast between this recommendation and how Shane and Corinne Mitchell were treated is stark.