diff --git a/apps/openmw/mwmp/MechanicsHelper.cpp b/apps/openmw/mwmp/MechanicsHelper.cpp
index 8bfb5132c..791b2217e 100644
--- a/apps/openmw/mwmp/MechanicsHelper.cpp
+++ b/apps/openmw/mwmp/MechanicsHelper.cpp
@@ -1,4 +1,5 @@
 #include <components/openmw-mp/TimedLog.hpp>
+#include <components/openmw-mp/Utils.hpp>
 
 #include <components/misc/rng.hpp>
 
@@ -269,6 +270,35 @@ bool MechanicsHelper::getSpellSuccess(std::string spellId, const MWWorld::Ptr& c
     return Misc::Rng::roll0to99() < MWMechanics::getSpellSuccessChance(spellId, caster, nullptr, true, false);
 }
 
+bool MechanicsHelper::isTeamMember(const MWWorld::Ptr& playerChecked, const MWWorld::Ptr& playerWithTeam)
+{
+    bool isTeamMember = false;
+    bool playerCheckedIsLocal = playerChecked == MWMechanics::getPlayer();
+    bool playerCheckedIsDedicated = !playerCheckedIsLocal ? mwmp::PlayerList::isDedicatedPlayer(playerChecked) : false;
+    bool playerWithTeamIsLocal = !playerCheckedIsLocal ? playerWithTeam == MWMechanics::getPlayer() : false;
+    bool playerWithTeamIsDedicated = !playerWithTeamIsLocal ? mwmp::PlayerList::isDedicatedPlayer(playerWithTeam) : false;
+
+    if (playerCheckedIsLocal || playerCheckedIsDedicated)
+    {
+        if (playerWithTeamIsLocal || playerWithTeamIsDedicated)
+        {
+            RakNet::RakNetGUID playerCheckedGuid;
+
+            if (playerCheckedIsLocal)
+                playerCheckedGuid = mwmp::Main::get().getLocalPlayer()->guid;
+            else
+                playerCheckedGuid = PlayerList::getPlayer(playerChecked)->guid;
+
+            if (playerWithTeamIsLocal)
+                isTeamMember = Utils::vectorContains(mwmp::Main::get().getLocalPlayer()->teamMembers, playerCheckedGuid);
+            else
+                isTeamMember = Utils::vectorContains(PlayerList::getPlayer(playerWithTeam)->teamMembers, playerCheckedGuid);
+        }
+    }
+
+    return isTeamMember;
+}
+
 void MechanicsHelper::processAttack(Attack attack, const MWWorld::Ptr& attacker)
 {
     LOG_MESSAGE_SIMPLE(TimedLog::LOG_VERBOSE, "Processing attack from %s of type %i",
diff --git a/apps/openmw/mwmp/MechanicsHelper.hpp b/apps/openmw/mwmp/MechanicsHelper.hpp
index 3b8d6badb..c4bd358ad 100644
--- a/apps/openmw/mwmp/MechanicsHelper.hpp
+++ b/apps/openmw/mwmp/MechanicsHelper.hpp
@@ -34,6 +34,12 @@ namespace MechanicsHelper
     void resetAttack(mwmp::Attack* attack);
     void resetCast(mwmp::Cast* cast);
 
+    // See whether playerChecked belongs to playerWithTeam's team
+    // Note: This is not supposed to also check if playerWithTeam is on playerChecked's
+    //       team, because it should technically be possible to be allied to someone
+    //       who isn't mutually allied to you
+    bool isTeamMember(const MWWorld::Ptr& playedChecked, const MWWorld::Ptr& playerWithTeam);
+
     bool getSpellSuccess(std::string spellId, const MWWorld::Ptr& caster);
 
     void processAttack(mwmp::Attack attack, const MWWorld::Ptr& attacker);