I have been going through old mugshots again and you have to love De Gracy and Edward Dalton. Their crime is unknown but somehow I am pretty sure they are guilty.
I like the stare on Dalton to add to the menacing look.
Then there are J Walter Ford and Oswald Clive Nash in June 1921 — also crime unknown but criminality seems more than evident.
The NSW Police Forensic Photography Archive of the Central Police Station in Sydney Australia is a wonderful source of such dubious characters.