The Karachi police in their drive against criminals, arrested 78 alleged criminals during snap checking, patrolling and picketing etc. in different areas during the past three days. A police statement here on Monday said that these included six absconders and proclaimed offenders. It said that six police encounters also took place during the period in different areas of the metropolis. As a result of the police action, five gangs of alleged criminals were also busted, the police statement added. As many as 46 pistols, a dagger, 13 mobile phones and cash also recovered from the possession of those arrested. The police have registered the cases and have started investigations, it was further stated.