diff --git a/marl_factory_grid/environment/actions.py b/marl_factory_grid/environment/actions.py
index 53403a7..a2281e3 100644
--- a/marl_factory_grid/environment/actions.py
+++ b/marl_factory_grid/environment/actions.py
@@ -7,6 +7,8 @@ from marl_factory_grid.utils.helpers import MOVEMAP
 from marl_factory_grid.utils.results import ActionResult
 
 
+TYPE_COLLISION = 'collision'
+
 class Action(abc.ABC):
 
     @property
diff --git a/marl_factory_grid/environment/factory.py b/marl_factory_grid/environment/factory.py
index d64ede9..b793f80 100644
--- a/marl_factory_grid/environment/factory.py
+++ b/marl_factory_grid/environment/factory.py
@@ -212,8 +212,7 @@ class Factory(gym.Env):
         # Combine Info dicts into a global one
         combined_info_dict = defaultdict(lambda: 0.0)
         for result in chain(tick_results, done_check_results):
-            if not result:
-                raise ValueError()
+            assert result, 'Something returned None...'
             if result.reward is not None:
                 try:
                     rewards[result.entity.name] += result.reward
diff --git a/marl_factory_grid/utils/results.py b/marl_factory_grid/utils/results.py
index a40004b..0fb260e 100644
--- a/marl_factory_grid/utils/results.py
+++ b/marl_factory_grid/utils/results.py
@@ -2,9 +2,11 @@ from typing import Union
 from dataclasses import dataclass
 
 from marl_factory_grid.environment.entity.object import Object
-
+import marl_factory_grid.environment.constants as c
 TYPE_VALUE = 'value'
 TYPE_REWARD = 'reward'
+
+
 TYPES = [TYPE_VALUE, TYPE_REWARD]
 
 
@@ -32,8 +34,9 @@ class Result:
     """
     identifier: str
     validity: bool
-    reward: Union[float, None] = None
-    value: Union[float, None] = None
+    reward: float | None = None
+    value: float | None = None
+    collision: bool | None = None
     entity: Object = None
 
     def get_infos(self):
@@ -68,8 +71,17 @@ class ActionResult(Result):
         super().__init__(*args, **kwargs)
         self.action_introduced_collision = action_introduced_collision
 
-    pass
+    def __repr__(self):
+        sr = super().__repr__()
+        return sr + f" | {c.COLLISION}" if self.action_introduced_collision is not None else ""
 
+    def get_infos(self):
+        base_infos = super().get_infos()
+        if self.action_introduced_collision:
+            i = InfoObject(identifier=f'{self.entity.name}_{c.COLLISION}', val_type=TYPE_VALUE, value=1)
+            return base_infos + [i]
+        else:
+            return base_infos
 
 @dataclass
 class DoneResult(Result):