Chechen terrorists are likely to be members of Al-Qaeda, but Chechens also have their own organized crime groups that aren't necessary linked to terrorist groups.
Not every Al-Qaeda group has links to organized crime. Berbers from Morocco and Algeria, Chechens, Mirpuris from Pakistan, Palestinians and Filipino Moro Muslims are the ethnic groups that often set-up their own criminal groups that may , but not necessarily do have links to Al-Qaeda. It's also important to note that criminal groups from the ethnics have often turned against the terrorist gangs. For instance, a lot of Pashtun crime bosses loathe the Taliban and have even collaborated with Western forces.