diff --git a/api/routes/participantRoute.js b/api/routes/participantRoute.js
index d22aa43..ad84250 100644
--- a/api/routes/participantRoute.js
+++ b/api/routes/participantRoute.js
@@ -2,6 +2,7 @@ const express = require('express');
 const router = express.Router();
 
 const { authenticate } = require('../../middlewares/authenticate');
+const { validateParticipantID } = require('../../middlewares/validateParticipantID');
 const Participant = require('../models/participantModel');
 
 router.post('/', authenticate, async (req, res) => {
@@ -18,7 +19,7 @@ router.post('/', authenticate, async (req, res) => {
 	}
 });
 
-router.put('/:account_id-:meeting_id', authenticate, async (req, res) => {
+router.put('/:account_id-:meeting_id', authenticate, validateParticipantID, async (req, res) => {
 	const data = { ...req.body };
 	const { account_id, meeting_id } = req.params;
 
@@ -37,7 +38,7 @@ router.put('/:account_id-:meeting_id', authenticate, async (req, res) => {
 	}
 });
 
-router.delete('/:account_id-:meeting_id', authenticate, async (req, res) => {
+router.delete('/:account_id-:meeting_id', authenticate, validateParticipantID, async (req, res) => {
 	const { account_id, meeting_id } = req.params;
 
 	try {
@@ -64,7 +65,13 @@ router.get('/:account_id-:meeting_id', authenticate, async (req, res) => {
 			account_id,
 			meeting_id,
 		);
-		res.status(200).json(participant);
+		if (typeof participant == 'undefined') {
+			res.status(404).json({
+				message: `Participant with id ${id} doesn't exist.`,
+			});
+		} else {
+			res.status(200).json(participant);
+		}
 	} catch (error) {
 		res.status(500).json({
 			message: `Failed to get participant with id ${account_id}-${meeting_id}.`,
diff --git a/middlewares/validateParticipantID.js b/middlewares/validateParticipantID.js
new file mode 100644
index 0000000..de9e25b
--- /dev/null
+++ b/middlewares/validateParticipantID.js
@@ -0,0 +1,26 @@
+const Participant = require('../api/models/participantModel');
+
+async function validateParticipantID(req, res, next) {
+	const { account_id, meeting_id } = req.params;
+
+	try {
+		const participant = await Participant.getParticipantById(
+			account_id,
+			meeting_id,
+		);
+		if (typeof participant == 'undefined') {
+			res.status(404).json({
+				message: `Participant with id ${id} doesn't exist.`,
+			});
+		} else {
+			next();
+		}
+	} catch (error) {
+		res.status(500).json({
+			message: `Failed to get participant with id ${account_id}-${meeting_id}.`,
+			error,
+		});
+	}
+}
+
+exports.validateParticipantID = validateParticipantID;
\ No newline at end of file