Tripwire traps do not work at all in the latest Experimental update.
No matter what surface it's place on or what condition its in, the tripwire doesn't activate when stepped on. Even when a remote detonator or grenade is attached, it still doesn't work.
Are you testing that on the live server or in offline mode ? because , in offline mode, they do not activate. On live servers they work, just tested it with a smoke nade. They worked both empty and when they had attached smoke nade to them.
@Geez Can you close this report, it turns out that god mode in the offline DayZ was causing the tripwire to not work.