>> Islamic states have left behind a deadly legacy. They may be gone, but they're still claiming hundreds of lives. As people return home to Mosul and other areas of northern Iraq freed from militant rule, they're being met with homemade bombs and explosives laid on an industrial scale. The fields are sewn with mines, the streets, houses and mosques, booby trapped.
I'm Reuters Emily Wither. This village is about 40 kilometers from Mosul. The school here has just been cleared of explosives by Norwegian People's Aid. They say the building was rigged with booby traps, including one behind the door to this classroom. The clearing campaign could take decades, and it's pretty tough to stop kids from being curious.
>> Watch out, watch out. Don't, no, don't put it there.>> This is an improvised rocket warhead with a damaged, but still functional improvised fuse, it works on impact. A little girl carried this over to us today. Handling this wrong, such as dropping on its nose, could activate it.
>> It took eight days for the clearing team to reach this point from the village. It was used as an Islamic State command post. They dug tunnels to hide from air strikes. Lines of homemade mines have been found running down the power line. This is fairly typical of what teams are finding in and around villages.
Islamic State improvised most conventional weapons. So while this might not look like a land mine, it's being used as one. It's a pressure plate IED and will explode when someone steps on this. Snorterfik from the Norwegian People's Aid Anti-Explosives Project says the level of contamination is astounding.>> I hear stories like one IED killed six people, one IED.
It's not like a mine injured or killed one person or two person. So especially for the civilian, when they try to come back, so everything was new for the people. It's not like the mines, not like the people, so many people died during coming back to their houses.
>> Experts say by targeting civilians, IS hopes to hinder efforts to rebuild. The longer the crisis lasts, the more chance they have to thrive again.