diff --git a/src/routes/getLockReason.ts b/src/routes/getLockReason.ts
new file mode 100644
index 0000000..30d1330
--- /dev/null
+++ b/src/routes/getLockReason.ts
@@ -0,0 +1,56 @@
+import {db} from "../databases/databases";
+import {Logger} from "../utils/logger";
+import {Request, Response} from "express";
+import { Category, VideoID } from "../types/segments.model";
+import {config} from "../config";
+
+export async function getLockCategories(req: Request, res: Response): Promise<Response> {
+    const videoID = req.query.videoID as VideoID;
+    let categories: Category[] = [];
+    try {
+        categories = req.query.categories
+            ? JSON.parse(req.query.categories as string)
+            : req.query.category
+                ? Array.isArray(req.query.category)
+                    ? req.query.category
+                    : [req.query.category]
+                : ["sponsor"];
+        if (!Array.isArray(categories)) {
+            return res.status(400).send("Categories parameter does not match format requirements.");
+        }
+    } catch(error) {
+        return res.status(400).send("Bad parameter: categories (invalid JSON)");
+    }
+
+    if (videoID == undefined) {
+        //invalid request
+        return res.sendStatus(400);
+    }
+
+    try {
+        // Get existing lock categories markers
+        const row = await db.prepare("all", 'SELECT "category", "reason" from "lockCategories" where "videoID" = ?', [videoID]) as {category: Category, reason: string}[];
+        // map to object array
+        const locks = [];
+        for (const lock of row) {
+            locks.push({
+                category: lock.category,
+                locked: 1,
+                reason: lock.reason
+            });
+        }
+        const notLocked = categories.filter(reqCategory => config.categoryList.includes(reqCategory));
+        for (const noLock of notLocked) {
+            locks.push({
+                category: noLock,
+                locked: 0,
+                reason: ""
+            });
+        }
+        const filtered = locks.filter(lock => categories.includes(lock.category));
+        return res.send(...filtered, ...notLocked );
+    } catch (err) {
+        Logger.error(err as string);
+        return res.sendStatus(500);
+    }
+}