diff --git a/src/Apps/StatCan.OrchardCore.Candev/Controllers/AdminController.cs b/src/Apps/StatCan.OrchardCore.Candev/Controllers/AdminController.cs
index 856915f58..0140f1499 100644
--- a/src/Apps/StatCan.OrchardCore.Candev/Controllers/AdminController.cs
+++ b/src/Apps/StatCan.OrchardCore.Candev/Controllers/AdminController.cs
@@ -107,5 +107,18 @@ public async Task<IActionResult> SelectNHackers(int n)
             return RedirectToAction("Index");
         }
 
+        [HttpPost]
+        [ValidateAntiForgeryToken]
+        public async Task<IActionResult> CheckIn()
+        {
+            if (!HttpContext.User.IsInRole("Administrator"))
+            {
+                return Unauthorized();
+            }
+
+            await _candevService.CheckIn();
+            _notifier.Success(H["Checked-In participants have been selected."]);
+            return RedirectToAction("Index");
+        }
     }
 }
diff --git a/src/Apps/StatCan.OrchardCore.Candev/Services/CandevService.cs b/src/Apps/StatCan.OrchardCore.Candev/Services/CandevService.cs
index f09876185..1d1acfd20 100644
--- a/src/Apps/StatCan.OrchardCore.Candev/Services/CandevService.cs
+++ b/src/Apps/StatCan.OrchardCore.Candev/Services/CandevService.cs
@@ -599,6 +599,24 @@ public async Task<bool> SelectNHackers(int n)
             return true;
         }
 
+        public async Task<bool> CheckIn()
+        {
+            var users = await _session.Query<User, CandevUsersIndex>(x => x.Roles.Contains("Hacker") && !x.CheckIn).ListAsync();
+            var participants = await _session.QueryIndex<CandevUsersIndex>(x => x.Roles.Contains("Hacker") && !x.CheckIn).ListAsync();
+
+            foreach (var participant in participants)
+            {
+                var user = users.Where(x => x.UserId == participant.UserId).FirstOrDefault();
+                if (user.HasTeam())
+                {
+                    RemoveFromTeam(user);
+                }
+                _userManager.RemoveFromRoleAsync(user, "Hacker").GetAwaiter();
+            }
+
+            return true;
+        }
+
         private async void RemoveFromTeam(User user)
         {
             var team = await _session.Query<ContentItem, CandevItemsIndex>(x => x.ContentItemId == user.GetTeamId() && x.ContentType == "Team" && x.Published).FirstOrDefaultAsync();
diff --git a/src/Apps/StatCan.OrchardCore.Candev/Services/ICandevService.cs b/src/Apps/StatCan.OrchardCore.Candev/Services/ICandevService.cs
index 332f2169f..0b3660f50 100644
--- a/src/Apps/StatCan.OrchardCore.Candev/Services/ICandevService.cs
+++ b/src/Apps/StatCan.OrchardCore.Candev/Services/ICandevService.cs
@@ -28,5 +28,6 @@ public interface ICandevService
         Task<string> CreateChallenge(string challengeTitle);
         Task<string> CreateTopic(string topicName, string challengeId);
         Task<bool> SelectNHackers(int n);
+        Task<bool> CheckIn();
     }
 }
diff --git a/src/Apps/StatCan.OrchardCore.Candev/Views/Admin/Index.cshtml b/src/Apps/StatCan.OrchardCore.Candev/Views/Admin/Index.cshtml
index 4a0eadf4d..606526e7c 100644
--- a/src/Apps/StatCan.OrchardCore.Candev/Views/Admin/Index.cshtml
+++ b/src/Apps/StatCan.OrchardCore.Candev/Views/Admin/Index.cshtml
@@ -34,5 +34,17 @@
           </button>
         </form>
     </div>
+    <div class="mr-1" id="CheckIn-button">
+      <a asp-action="CheckIn" asp-controller="Admin" asp-route-area="StatCan.OrchardCore.Candev"
+          role="button" class="btn btn-primary btn-md" 
+          data-title="@T["Check-In"]"
+          data-message="@T["Are you sure you want to run the Check-in process? Running it after the hackathon has started can delete teams."]" 
+          data-ok="@T["Yes"]" 
+          data-cancel="@T["No"]" 
+          data-ok-class="btn-primary" 
+          itemprop="RemoveUrl UnsafeUrl">
+        @T["Check-in"]
+      </a>
+    </div>
   </div>
-</div>
\ No newline at end of file
+</div>