Edmond Locard’s “Exchange Principle”

Edmond Locard (1877-1966) was a French criminologist and is considered the “father of forensic science.” His most famous legacy is probably “Locard’s Exchange Principle,” which is the basic notion that “Every contact leaves a trace.” More specifically, whenever two objects come into contact, there is always a transfer of material. This principle is a foundation … Continue reading Edmond Locard’s “Exchange Principle”

How important is DNA collection after all? A look at Sameena Mulla’s ‘Violence of Care’

Earlier this month I posted a reading list that I’ve been working on, which included Sameena Mulla’s The Violence of Care. I want to focus on one particular chapter from that book that really resonated with some other things I’ve been reading and re-watching, namely the Netflix mini-series Unbelievable and the nonfiction reporting the series … Continue reading How important is DNA collection after all? A look at Sameena Mulla’s ‘Violence of Care’

When, and Why, are Forensic Tools Culturally Biased?

According to various measures, including FBI statistics, Black men are the most likely to be homicide victims in the United States. That includes unsolved cases, for which new genetic technology such as genealogy databases are increasingly playing a role. You’ve probably heard of some recent high profile breakthroughs using this genetic genealogy to solve the … Continue reading When, and Why, are Forensic Tools Culturally Biased?