Lombroso identified that criminality was heritable. You have an innatepredisposition to crime, the shape of your head determined if you were “borncriminal”
He used physiognomy to determine who would be criminal. The way you look determines how you will behave.
Criminals have distinct physical characteristics. Lombroso argued these were a separate species between modern and primitive humans.
Criminals have atavistic features which are throwback characteristics from an earlystage of human development. They manifest a tendency to commit crimes. EG slopingforehead.
Garland argued Lombroso gave criminology scientificcredibility (1)
Lombroso one of the first to use scientific methods (1)
Today nuero-criminology draws on some of lombrosos theories. For example whether brain injuries or genetic abnormalities can lead to criminality (1)
Recent studies found genetic origin for crime, MAOA gene, supporting his earlier ideas (1)
Lombroso finding have been difficult to replicate (2)
This casts doubt on the reliability. (2)
For example GORING made a studyof the physical features of 1000+ english prisoners. Hefoundnodistinctive features that Lombroso notes. (2)
Modern research also finds no link in the majority of Lombrosos claims. It may be more likely this was a coincidence.
Lombroso theory also have ethicalimplications (3)
If we could identify criminals by physical characteristics, that would mean we could prosecute them before they even commit the offence. (3)
His research can also be used to discriminate, “scientific racism”. There are distinct racial undertones within his work, such as the curly hair and dark skin being features of a criminal. (3)
Not all criminals have abnormalities and not all people with abnormalities are criminal. This leads to wrongly stereotyping individuals. (3)