diff --git a/analysis/classes/builders.py b/analysis/classes/builders.py
index a0bf8753..8a981fd3 100644
--- a/analysis/classes/builders.py
+++ b/analysis/classes/builders.py
@@ -585,9 +585,7 @@ def _load_reco(self, entry, data, result):
                 particles = []
                 for p in result['particles'][0]:
                     if p.interaction_id == bp['id']:
-                        p.interaction_id = len(out)
                         particles.append(p)
-                        continue
                 ia = Interaction.from_particles(particles,
                                                 verbose=False, **info)
             else:
@@ -600,7 +598,6 @@ def _load_reco(self, entry, data, result):
                 if 'input_rescaled_source' in result:
                     info['sources'] = result['input_rescaled_source'][0][mask]
                 ia = Interaction(**info)
-                ia.id = len(out)
 
             # Handle matches
             match_overlap = OrderedDict({i: val for i, val in zip(bp['match'], bp['match_overlap'])})
@@ -646,9 +643,7 @@ def _load_truth(self, entry, data, result):
                 particles = []
                 for p in result['truth_particles'][entry]:
                     if p.interaction_id == bp['id']:
-                        p.interaction_id = len(out)
                         particles.append(p)
-                        # continue
                 ia = TruthInteraction.from_particles(particles,
                                                      verbose=False,
                                                      **info)
@@ -671,7 +666,6 @@ def _load_truth(self, entry, data, result):
                 if 'input_rescaled_source' in result:
                     info['sources'] = result['input_rescaled_source'][0][mask]
                 ia = TruthInteraction(**info)
-                ia.id = len(out)
                 
             # Handle matches
             match_overlap = OrderedDict({i: val for i, val in zip(bp['match'], bp['match_overlap'])})
diff --git a/analysis/post_processing/reconstruction/geometry.py b/analysis/post_processing/reconstruction/geometry.py
index 54065e94..5fab96cc 100644
--- a/analysis/post_processing/reconstruction/geometry.py
+++ b/analysis/post_processing/reconstruction/geometry.py
@@ -229,3 +229,27 @@ def check_fiducial(data_dict, result_dict,
             ia.is_fiducial = geo.check_containment(vertex, margin, mode=mode)
 
     return {}
+
+
+def get_points(particle, truth_point_mode):
+    '''
+    Get the particle point coordinates of a Particle/Interaction or
+    TruthParticle/TruthInteraction object. The TruthParticle object points
+    are obtrained using the `truth_point_mode`.
+
+    Parameters
+    ----------
+    particle : Union[Particle, TruthParticle]
+        Particle object
+    truth_point_mode : str, default 'points'
+        Point attribute to use for true particles
+
+    Results
+    -------
+    np.ndarray
+       (N, 3) Point coordinates
+    '''
+    if not isinstance(particle, (TruthParticle, TruthInteraction)):
+        return particle.points
+    else:
+        return getattr(particle, truth_point_mode)
diff --git a/mlreco/iotools/parsers/sparse.py b/mlreco/iotools/parsers/sparse.py
index b161638c..78fac0de 100644
--- a/mlreco/iotools/parsers/sparse.py
+++ b/mlreco/iotools/parsers/sparse.py
@@ -1,6 +1,8 @@
 import numpy as np
 from larcv import larcv
 
+from mlreco.utils.globals import GHOST_SHP
+
 
 def parse_sparse2d(sparse_event_list):
     """
@@ -188,7 +190,8 @@ def parse_sparse3d_charge_rescaled(sparse_event_list, collection_only=False):
     from mlreco.utils.ghost import compute_rescaled_charge
     np_voxels, output = parse_sparse3d(sparse_event_list)
 
-    charges = compute_rescaled_charge(output[:, :-1], deghost,
+    deghost_mask = np.where(output[:, -1] < GHOST_SHP)[0]
+    charges = compute_rescaled_charge(output[:, :-1], deghost_mask,
             last_index=0, collection_only=collection_only, use_batch=False)
 
-    return np_voxels[deghost], charges.reshape(-1,1)
+    return np_voxels[deghost_mask], charges.reshape(-1,1)