To know about the criminal nature one need not visit any Jail to have a head-count! Just open any days News-paper crime page and see the names of the people that appear on that page.On an average you will find 70 to 80% of them are with muslim names! With 15 to 20% of the population being muslims it tells its own story! Can any one-particularly that Hindu bashing "secular" lot-deny this fact?