10/17/2011 03:22 EDT | Updated 12/17/2011 05:12 EST

Software allows police to identify more Stanley Cup rioters by 'tagging' them

VANCOUVER - Vancouver police say sophisticated software is allowing them to identify more Stanley Cup rioters, even when they start out with only a partial image of a suspect committing a crime.

Inspector Les Yeo says the partial image can be "tagged" allowing a computer to search other video to find a match to help identify the rioter, even some who were covering their faces.

He says with the help of a forensic lab in Indianapolis, police have been searching through 5,000 hours of video compared to 100 they had for the Stanley Cup riot in 1994.

Yeo says police are still on track to recommend multiple charges against 40 suspects by the end of the month, and many more people will be charged in the months to come as police continue to post their pictures on the department's riot website.

He says nine of the 12 photos posted last week were identified within three days.

Yeo says a total of 79 people have turned themselves in since the riot on June 15 when Vancouver lost the last game of the Stanley Cup final to the Boston Bruins.