MARRIED WOMEN AND CRIME - THE STUPIDITY OF THE TIHAR JAIL DIRECTOR

In 2003 or so, the director/warden of Tihar Jail (in Delhi, India) made a "eureka" finding, that married women were more prone to crime than unmarried ones! He based his "discovery" on the fact that 55 percent of the women prisoners in that jail were married.

Now, what is wrong in his reasoning? There are many points. Try to find them. This is your puzzle.