Here you can see how they make improvised explosive devices in Ingushetia. Such weapons are used to kill people and destroy various objects.
On the picture above the people are just going to make some "hellish machines", as they call them.
The process is not so difficult but is always connected with risk. They can become the first and the only victim of their own weapon. Of course, such devices are far from being reliable. Successful planting is already a big luck. But someone can find and neutralize it. Or it may explode in a wrong moment or not to explode at all.
Some bandits have recently exploded themselves while making a bomb.
But what happens with ready devices? As a rule they are found at the stage of storage. Almost all others are found before explosions. If there is an opportunity to send a robot (which is very expensive) they send a robot. If there is no such opportunity - they prefer to explode the area with the controlled explosion.