diff --git a/zaaReloaded2/Commands.cs b/zaaReloaded2/Commands.cs
index 2a023b0..b0db793 100755
--- a/zaaReloaded2/Commands.cs
+++ b/zaaReloaded2/Commands.cs
@@ -204,12 +204,12 @@ namespace zaaReloaded2
             Word.Selection selection = activeWindow.Selection;
             Word.Paragraphs paragraphs = selection.Paragraphs;
             Importer.IImporter importer = null;
+            Importer.AutoDetector autoDetector = new Importer.AutoDetector();
             if (!(paragraphs.Count > 1
                 || (selection.Text.Length > 1 && selection.Text.EndsWith("\r"))))
             {
                 Logger.Info("DoFormat: Attempting to auto-detect");
                 Word.Document doc = activeWindow.Document;
-                Importer.AutoDetector autoDetector = new Importer.AutoDetector();
                 if (!autoDetector.Detect(doc))
                 {
                     Logger.Info("DoFormat: Automatic detection failed");
@@ -224,6 +224,12 @@ namespace zaaReloaded2
                 // Bovender.ComHelpers.ReleaseComObject(doc);
                 importer = autoDetector.CreateImporter();
             }
+            else if (paragraphs.Count >= 1)
+            {
+                Logger.Info("DoFormat: Detecting mode of selection");
+                autoDetector.Detect(selection);
+            }
+            importer = autoDetector.CreateImporter();
 
             Logger.Info("DoFormat: Importing");
             importer.Import(selection.Text);
diff --git a/zaaReloaded2/Importer/AutoDetector.cs b/zaaReloaded2/Importer/AutoDetector.cs
index e02f31b..17fafac 100755
--- a/zaaReloaded2/Importer/AutoDetector.cs
+++ b/zaaReloaded2/Importer/AutoDetector.cs
@@ -52,56 +52,29 @@ namespace zaaReloaded2.Importer
                     "Automatic laboratory detection requires a document.");
             }
 
-            // TODO: Try to make this algorithm more elegant.
-            Paragraph start = null;
-            Paragraph end = null;
-            int i = 1;
-
+            int startParagraph = 1;
             if (document.Bookmarks.Exists("Labor"))
             {
                 Logger.Info("Detect: Found lab bookmark");
-                i = GetParagraphIndex(
+                startParagraph = GetParagraphIndex(
                     document,
                     document.Bookmarks["Labor"].Range.Paragraphs[1]);
             }
 
-            while (i <= document.Paragraphs.Count)
+            return DetectRange(document, startParagraph, document.Paragraphs.Count);
+        }
+
+        public bool Detect(Selection selection)
+        {
+            if (selection == null)
             {
-                // Expect the first paragraph of a Lauris block to be
-                // a time stamp. This prevents erroneous detection of
-                // lines such as "Tel. (09 31) 201-39432; -39126", which
-                // happen to structurally resemble a paragraph with
-                // laboratory items.
-                if (IsTimeStampParagraph(document.Paragraphs[i]))
-                {
-                    start = document.Paragraphs[i];
-                    Logger.Info("Detect: Found time stamp line in paragraph #{0}", i);
-                    break;
-                }
-                i++;
+                throw new ArgumentNullException(
+                    "Automatic laboratory detection requires a selection.");
             }
 
-            if (start != null)
-            {
-                Logger.Info("Detect: Determining lab block");
-                end = start;
-                while (i <= document.Paragraphs.Count - 1)
-                {
-                    Paragraph p = document.Paragraphs[i+1];
-                    if (!IsLabParagraph(p) && !IsEmptyParagraph(p))
-                    {
-                        Logger.Info("Detect: Last lab paragraph is #{0}", i);
-                        end = document.Paragraphs[i];
-                        break;
-                    }
-                    i++;
-                }
-
-                document.Range(start.Range.Start, end.Range.End).Select();
-                return true;
-            }
-            Logger.Warn("Detect: Did not find lab block!");
-            return false;
+            return DetectRange(selection.Document,
+                GetParagraphIndex(selection.Document, selection.Paragraphs.First),
+                GetParagraphIndex(selection.Document, selection.Paragraphs.Last) + 1);
         }
 
         public IImporter CreateImporter()
@@ -121,6 +94,79 @@ namespace zaaReloaded2.Importer
 
         #region Private methods
 
+        private bool DetectRange(Document document, int startParagraph, int endParagraph)
+        {
+            if (document == null)
+            {
+                throw new ArgumentNullException(
+                    "Automatic laboratory detection requires a document.");
+            }
+
+            if (startParagraph < 1 || startParagraph > document.Paragraphs.Count)
+            {
+                Logger.Fatal("Start paragraph index must be between {0} and {1}, was {2}!",
+                    1, document.Paragraphs.Count, startParagraph);
+                throw new ArgumentOutOfRangeException("startParagraph");
+            }
+
+            if (endParagraph < startParagraph || endParagraph > document.Paragraphs.Count)
+            {
+                Logger.Fatal("End paragraph index must be between {0} and {1}, was {2}!",
+                    startParagraph, document.Paragraphs.Count, endParagraph);
+                throw new ArgumentOutOfRangeException("endParagraph");
+            }
+
+            Logger.Info("DetectRange: Start paragraph is #{0}, end is #{1}, document has #{2} paragraphs",
+                startParagraph, endParagraph, document.Paragraphs.Count);
+
+            // TODO: Try to make this algorithm more elegant.
+            Paragraph start = null;
+            Paragraph end = null;
+            int i = startParagraph;
+
+            while (i <= endParagraph)
+            {
+                // Expect the first paragraph of a Lauris block to be
+                // a time stamp. This prevents erroneous detection of
+                // lines such as "Tel. (09 31) 201-39432; -39126", which
+                // happen to structurally resemble a paragraph with
+                // laboratory items.
+                if (IsTimeStampParagraph(document.Paragraphs[i]))
+                {
+                    start = document.Paragraphs[i];
+                    Logger.Info("DetectRange: Found time stamp line in paragraph #{0}", i);
+                    break;
+                }
+                i++;
+            }
+
+            if (start != null)
+            {
+                Logger.Info("DetectRange: Determining lab block");
+                while (i <= endParagraph - 1)
+                {
+                    Paragraph p = document.Paragraphs[i + 1];
+                    if (!IsLabParagraph(p) && !IsEmptyParagraph(p))
+                    {
+                        Logger.Info("Detect: Last lab paragraph is #{0}", i);
+                        end = document.Paragraphs[i];
+                        break;
+                    }
+                    i++;
+                }
+
+                if (end == null)
+                {
+                    end = document.Paragraphs[endParagraph];
+                }
+
+                document.Range(start.Range.Start, end.Range.End).Select();
+                return true;
+            }
+            Logger.Warn("DetectRange: Did not find lab block!");
+            return false;
+        }
+
         /// <summary>
         /// Returns true if a paragraph is a time stamp line.
         /// </summary>