David Canter: Railway Rapist

Question 1

Profile/Duffys demographics?

Answer 1

Profile=
•mid to late twenties
•light hair
•about 5ft 9 inches
•right-handed 

Duffy=
•aged late 20s
•5ft 4 inches
•achne 
•right-handed

Question 2

Profile/ Duffys occupation?

Answer 2

Profile=
•probably semi-skilled involving weekend work/casual labour from July 1984
•no contact with public

Duffy=
•travelling carpenter

Question 3

Profile/Duffys character?

Answer 3

Profile=
•keeps himself to himself, 1 or 2 close male friends but no women
•knowledge of railway system 
•liked to keep souvenirs 
•fascination for weapons 

Duffy=
•two friends, one co-offender David Malcahy
•worked for British railway
•33 door keys from victims
•member of martial arts club+had kung fu weapons

Question 4

Profile/Duffys sexual activity?

Answer 4

Profile=
•variety of sexual actions suggests considerable sexual experience

Duffy=
•raped wife at knife point
•had hard-core porn videos

Question 5

Profile/Duffys criminal record?

Answer 5

Profile=
•probably arrested some time between 24 October 1982+Jan 1984 for being aggressive under influence of drugs/alcohol

Duffy=
•known by police for violence against wife

Question 6

Pros and cons?

Answer 6

✔️sped up the process (was 1505th on the suspect list)
✔️high ecological validity

✖️androcentric
✖️can cause miscarriages of justice
✖️validity- not predict everything
✖️case study- low in reliability

Question 7

Profile/Duffys residence?

Answer 7

Profile=
•lived in areas circumscribed by first 3 cases in 1983
•probably lived in that area at time of arrest
•probably lives with wife/gf, no children

Duffy=
•lived in area suggested (Kilburn)
•recently separated from wife
•attacked+tied up his wife before sex