dermott bolger phwwxbyczrqexgmailcom according book freakanomics crime rate reduction due availability abortion every child wanted child regards dermott 102907 nessa johnston wrote wow first thought could well bollocks remembered following radio 4 series earlier year crime lives history crime postwar britain sociologists interpreted media reported police government dealt according programme crime steadily risen since industrialisation mass migration urban areas rose sharply wwii continued rise decades follow nobody could really understand wasnt poverty although sociologists suggested inequality puzzling lot criminals jobs earning decent enough money final programme charted rise zero tolerance rhetoric government majorera onwards last 20 years crime made major election issue irony crime rates throughout developed world going steadily downwards last 20 years noone knows noone clue maybe lead petrol along mean mad nj 102907 ronan ciosoig moraighmaccom wrote ban leaded petrol cut crime rates around world geoffrey lean environment editor published 28 october 2007 banning lead petrol responsible declining crime rates britain united states countries startling new research suggests thu 07 aug 2008 105417 0000 ierant lead head makes criminal