diff --git a/application/controllers/api/frontend/v1/unrulyperson/UnrulyPerson.php b/application/controllers/api/frontend/v1/checkperson/CheckPerson.php
similarity index 67%
rename from application/controllers/api/frontend/v1/unrulyperson/UnrulyPerson.php
rename to application/controllers/api/frontend/v1/checkperson/CheckPerson.php
index d1dbea7d8..321893610 100644
--- a/application/controllers/api/frontend/v1/unrulyperson/UnrulyPerson.php
+++ b/application/controllers/api/frontend/v1/checkperson/CheckPerson.php
@@ -18,13 +18,15 @@
 
 if (! defined('BASEPATH')) exit('No direct script access allowed');
 
-class UnrulyPerson extends FHCAPI_Controller
+class CheckPerson extends FHCAPI_Controller
 {
 	public function __construct()
 	{
 		parent::__construct([
 			'updatePersonUnrulyStatus' => array('basis/mitarbeiter:rw', 'student/antragfreigabe:rw', 'student/studierendenantrag:rw'),
-			'filterPerson' => array('basis/mitarbeiter:rw', 'student/antragfreigabe:rw', 'student/studierendenantrag:rw')
+			'filterPerson' => array('basis/mitarbeiter:rw', 'student/antragfreigabe:rw', 'student/studierendenantrag:rw'),
+			'checkUnruly' => array('basis/mitarbeiter:r', 'student/antragfreigabe:r', 'student/studierendenantrag:r', 'infocenter:r'),
+			'checkDuplicate' => array('infocenter:r'),
 		]);
 
 		$this->_ci =& get_instance();
@@ -48,13 +50,42 @@ class UnrulyPerson extends FHCAPI_Controller
 
 	}
 
+	public function checkDuplicate() {
+
+		$person_id = $this->input->post('person_id');
+
+		$result = $this->_ci->PersonModel->checkDuplicate($person_id);
+
+		if (isSuccess($result))
+			$this->terminateWithSuccess($result);
+		else
+			$this->terminateWithError('Error when searching for person');
+
+	}
+
+	// performs strict check over vorname, nachname, gebdatum
+	public function checkUnruly() {
+
+		$vorname = $this->input->post('vorname');
+		$nachname = $this->input->post('nachname');
+		$gebdatum = $this->input->post('gebdatum');
+
+		$result = $this->_ci->PersonModel->checkUnruly($vorname, $nachname, $gebdatum);
+
+		if (isSuccess($result))
+			$this->terminateWithSuccess($result);
+		else
+			$this->terminateWithError('Error when searching for person');
+	}
+
+	// filters nachname on similarity and vorname/gebdatum are optional
 	public function filterPerson() {
 		$payload = json_decode($this->input->raw_input_stream, TRUE);
 
 		$nachnameString = '';
 		$vornameString = '';
 		$filterUnruly = true;
-		$birthdateString = null;
+		$birthdateString = '';
 
 		if(array_key_exists( 'nachname', $payload) ) {
 			$nachnameString = $payload['nachname'];
@@ -80,16 +111,16 @@ class UnrulyPerson extends FHCAPI_Controller
 			$where = "p.nachname=? ";
 		}
 
-		if(isset($vorname) && $vorname != '')
+		if(isset($vornameString) && $vornameString != '')
 		{
 			$where.= " AND p.vorname~*?";
-			$parametersArray[] = $vorname;
+			$parametersArray[] = $vornameString;
 		}
 
-		if(isset($birthdate) && $birthdate != '')
+		if(isset($birthdateString) && $birthdateString != '')
 		{
 			$where.=" AND p.gebdatum=?";
-			$parametersArray[] = $birthdate;
+			$parametersArray[] = $birthdateString;
 		}
 
 		if(isset($filterUnruly))
diff --git a/application/controllers/system/infocenter/InfoCenter.php b/application/controllers/system/infocenter/InfoCenter.php
index d5cb50a00..f6e41d2e6 100644
--- a/application/controllers/system/infocenter/InfoCenter.php
+++ b/application/controllers/system/infocenter/InfoCenter.php
@@ -342,7 +342,7 @@ class InfoCenter extends Auth_Controller
 		$checkUnruly = $this->PersonModel->checkUnruly($persondata['stammdaten']->vorname, $persondata['stammdaten']->nachname, $persondata['stammdaten']->gebdatum);
 		if (isError($checkUnruly)) show_error(getError($checkUnruly));
 
-		$duplicate = array('duplicated' => getData($checkPerson));
+		$duplicate = array('duplicate' => getData($checkPerson));
 		$unruly = array('unruly' => getData($checkUnruly));
 
 		$prestudentdata = $this->_loadPrestudentData($person_id);
@@ -1289,67 +1289,28 @@ class InfoCenter extends Auth_Controller
 			$this->terminateWithJsonError($this->p->t('ui', 'fehlerBeimSpeichern'));
 
 		$kontakte = $this->input->post('kontakt');
-		foreach ($kontakte as $kontakt)
-		{
-			$kontaktExists = $this->KontaktModel->loadWhere(array(
-				'kontakt_id' => $kontakt['id'],
-				'person_id' => $person_id,
-			));
+		if($kontakte) {
 
-			if (hasData($kontaktExists))
-			{
-				$kontaktExists = getData($kontaktExists)[0];
+			foreach ($kontakte as $kontakt) {
+				$kontaktExists = $this->KontaktModel->loadWhere(array(
+					'kontakt_id' => $kontakt['id'],
+					'person_id' => $person_id,
+				));
 
-				if ($kontaktExists->kontakt === $kontakt['value'])
-					continue;
+				if (hasData($kontaktExists)) {
+					$kontaktExists = getData($kontaktExists)[0];
 
-				$update = $this->KontaktModel->update(
-					array
-					(
-						'kontakt_id' => $kontakt['id']
-					),
-					array
-					(
-						'kontakt' => isEmptyString($kontakt['value']) ? null : $kontakt['value'],
-						'updateamum' => date('Y-m-d H:i:s'),
-						'updatevon' => $this->_uid
-					)
-				);
+					if ($kontaktExists->kontakt === $kontakt['value'])
+						continue;
 
-				if (isError($update))
-					$this->terminateWithJsonError($this->p->t('ui', 'fehlerBeimSpeichern'));
-			}
-		}
-
-		$adressen = $this->input->post('adresse');
-
-		foreach ($adressen as $adresse)
-		{
-			$adresseExists = $this->AdresseModel->loadWhere(array(
-				'adresse_id' => $adresse['id'],
-				'person_id' => $person_id,
-			));
-
-			if (hasData($adresseExists))
-			{
-				$adresse = $adresse['value'];
-				$adresseExists = getData($adresseExists)[0];
-				if ($adresseExists->strasse !== $adresse['strasse'] ||
-					$adresseExists->plz !== $adresse['plz'] ||
-					$adresseExists->ort !== $adresse['ort'] ||
-					$adresseExists->nation !== $adresse['nation'])
-				{
-					$update = $this->AdresseModel->update(
+					$update = $this->KontaktModel->update(
 						array
 						(
-							'adresse_id' => $adresseExists->adresse_id
+							'kontakt_id' => $kontakt['id']
 						),
 						array
 						(
-							'strasse' => isEmptyString($adresse['strasse']) ? null : $adresse['strasse'],
-							'plz' => isEmptyString($adresse['plz']) ? null : $adresse['plz'],
-							'ort' => isEmptyString($adresse['ort']) ? null : $adresse['ort'],
-							'nation' => isEmptyString($adresse['nation']) ? null : $adresse['nation'],
+							'kontakt' => isEmptyString($kontakt['value']) ? null : $kontakt['value'],
 							'updateamum' => date('Y-m-d H:i:s'),
 							'updatevon' => $this->_uid
 						)
@@ -1358,7 +1319,48 @@ class InfoCenter extends Auth_Controller
 					if (isError($update))
 						$this->terminateWithJsonError($this->p->t('ui', 'fehlerBeimSpeichern'));
 				}
+			}
 
+		}
+
+		$adressen = $this->input->post('adresse');
+
+		if($adressen) {
+
+			foreach ($adressen as $adresse) {
+				$adresseExists = $this->AdresseModel->loadWhere(array(
+					'adresse_id' => $adresse['id'],
+					'person_id' => $person_id,
+				));
+
+				if (hasData($adresseExists)) {
+					$adresse = $adresse['value'];
+					$adresseExists = getData($adresseExists)[0];
+					if ($adresseExists->strasse !== $adresse['strasse'] ||
+						$adresseExists->plz !== $adresse['plz'] ||
+						$adresseExists->ort !== $adresse['ort'] ||
+						$adresseExists->nation !== $adresse['nation']) {
+						$update = $this->AdresseModel->update(
+							array
+							(
+								'adresse_id' => $adresseExists->adresse_id
+							),
+							array
+							(
+								'strasse' => isEmptyString($adresse['strasse']) ? null : $adresse['strasse'],
+								'plz' => isEmptyString($adresse['plz']) ? null : $adresse['plz'],
+								'ort' => isEmptyString($adresse['ort']) ? null : $adresse['ort'],
+								'nation' => isEmptyString($adresse['nation']) ? null : $adresse['nation'],
+								'updateamum' => date('Y-m-d H:i:s'),
+								'updatevon' => $this->_uid
+							)
+						);
+
+						if (isError($update))
+							$this->terminateWithJsonError($this->p->t('ui', 'fehlerBeimSpeichern'));
+					}
+
+				}
 			}
 		}
 
diff --git a/application/models/person/Person_model.php b/application/models/person/Person_model.php
index 9f10599fb..42a3b1431 100644
--- a/application/models/person/Person_model.php
+++ b/application/models/person/Person_model.php
@@ -294,15 +294,15 @@ class Person_model extends DB_Model
 	{
 		$qry = "SELECT person_id
 				FROM public.tbl_prestudent p
-				JOIN 
+				JOIN
 				(
 					SELECT DISTINCT ON(prestudent_id) *
 					FROM public.tbl_prestudentstatus
-					WHERE prestudent_id IN 
+					WHERE prestudent_id IN
 						(
-							SELECT prestudent_id 
-							FROM public.tbl_prestudent 
-							WHERE person_id IN 
+							SELECT prestudent_id
+							FROM public.tbl_prestudent
+							WHERE person_id IN
 							(
 								SELECT p2.person_id
 								FROM public.tbl_person p
@@ -316,8 +316,8 @@ class Person_model extends DB_Model
 					ORDER BY prestudent_id, datum DESC, insertamum DESC
 				) ps USING(prestudent_id)
 				JOIN public.tbl_status USING(status_kurzbz)
-				WHERE status_kurzbz = 'Interessent' 
-				AND studiengang_kz IN 
+				WHERE status_kurzbz = 'Interessent'
+				AND studiengang_kz IN
 				(
 					SELECT studiengang_kz
 					FROM public.tbl_prestudent p
diff --git a/application/views/system/infocenter/infocenterDetails.php b/application/views/system/infocenter/infocenterDetails.php
index 53fbda8b5..51b913b6c 100644
--- a/application/views/system/infocenter/infocenterDetails.php
+++ b/application/views/system/infocenter/infocenterDetails.php
@@ -27,7 +27,8 @@
 			'public/js/infocenter/rueckstellung.js',
 			'public/js/infocenter/zgvUeberpruefung.js',
 			'public/js/infocenter/docUeberpruefung.js',
-			'public/js/infocenter/stammdaten.js'
+			'public/js/infocenter/stammdaten.js',
+			'public/js/infocenter/personcheck.js'
 		),
 		'phrases' => array(
 			'infocenter',
@@ -38,6 +39,14 @@
 
 	$this->load->view('templates/FHC-Header', $includesArray);
 ?>
+
+	<script>
+		// Embed PHP data into JS as JSON to access from script files
+		const viewData = {
+			checkPerson: <?php echo json_encode(array('unruly' => $unruly, 'duplicate' => $duplicate)); ?>,
+		};
+	</script>
+
 	<div id="wrapper">
 	
 		<?php echo $this->widgetlib->widget('NavigationWidget'); ?>
@@ -74,38 +83,8 @@
 						</div>
 					</div>
 				</div>
-				<?php if (!is_null($unruly)): ?>
-					<div class="row alert-info">
-						<h3 class="header col-lg-12">
-							<?php echo $this->p->t('infocenter', 'unrulyPersonFound') . ':'; ?>
-						</h3>
-						<div class="text-left col-lg-12">
-							<?php
-							foreach ($unruly as $unruled)
-							{
-								echo  'Person ID: ' . $unruled->person_id . '<br />';
-							}
-							?>
-						</div>
-
-					</div>
-				<?php endif; ?>
-				<?php if (!is_null($duplicated)): ?>
-					<div class="row alert-warning">
-						<h3 class="header col-lg-12">
-							<?php echo $this->p->t('global', 'bewerberVorhanden') . ':'; ?>
-						</h3>
-						<div class="text-left col-lg-12">
-							<?php
-							foreach ($duplicated as $duplicate)
-							{
-								echo  'Person ID: ' . $duplicate->person_id . '<br />';
-							}
-							?>
-						</div>
-	
-					</div>
-				<?php endif; ?>
+				<br/>
+					<?php $this->load->view('system/infocenter/personCheck.php', array('unruly' => $unruly, 'duplicate' => $duplicate)); ?>
 				<br/>
 				<section>
 					<div class="row">
diff --git a/application/views/system/infocenter/personCheck.php b/application/views/system/infocenter/personCheck.php
new file mode 100644
index 000000000..c43a11bed
--- /dev/null
+++ b/application/views/system/infocenter/personCheck.php
@@ -0,0 +1,34 @@
+
+<div class="row alert-info" id="unruly" style="display: none;">
+	<h3 class="header col-lg-12">
+		<?php echo $this->p->t('infocenter', 'unrulyPersonFound') . ':'; ?>
+	</h3>
+	<div class="text-left col-lg-12" id="unrulylist">
+		<?php
+		if($unruly) {
+			foreach ($unruly as $unruled)
+			{
+				echo '<a>Person ID: ' . $unruled->person_id . '<a/><br />';
+			}
+		}
+		?>
+	</div>
+</div>
+
+<div class="row alert-warning" id="duplicate" style="display: none;">
+
+	<h3 class="header col-lg-12">
+		<?php echo $this->p->t('global', 'bewerberVorhanden') . ':'; ?>
+	</h3>
+	<div class="text-left col-lg-12" id="duplicatelist">
+		<?php
+		if($duplicate) {
+			foreach ($duplicate as $dupe)
+			{
+				echo '<a>Person ID: ' . $dupe->person_id . '<a/><br />';
+			}
+		}
+		?>
+	</div>
+
+</div>
\ No newline at end of file
diff --git a/public/js/api/unrulyperson.js b/public/js/api/checkperson.js
similarity index 70%
rename from public/js/api/unrulyperson.js
rename to public/js/api/checkperson.js
index 9e7d16e9f..9cd85840a 100644
--- a/public/js/api/unrulyperson.js
+++ b/public/js/api/checkperson.js
@@ -3,7 +3,7 @@ export default {
 
 		try {
 			const payload = {person_id, unruly: unrulyParam}
-			const url = '/api/frontend/v1/unrulyperson/UnrulyPerson/updatePersonUnrulyStatus';
+			const url = '/api/frontend/v1/checkperson/CheckPerson/updatePersonUnrulyStatus';
 			return this.$fhcApi.post(url, payload, null);
 		} catch (error) {
 			throw error;
@@ -13,7 +13,7 @@ export default {
 	filterPerson(payload, base = ''){
 
 		try {
-			const url = base + '/api/frontend/v1/unrulyperson/UnrulyPerson/filterPerson';
+			const url = base + '/api/frontend/v1/checkperson/CheckPerson/filterPerson';
 			return axios.post(url, payload)
 			// return this.$fhcApi.post(url, payload, null);
 		} catch (error) {
diff --git a/public/js/api/fhcapifactory.js b/public/js/api/fhcapifactory.js
index 214076616..e30772ca7 100644
--- a/public/js/api/fhcapifactory.js
+++ b/public/js/api/fhcapifactory.js
@@ -23,7 +23,7 @@ import studstatus from "./studstatus.js";
 import stv from "./stv.js";
 import notiz from "./notiz.js";
 import betriebsmittel from "./betriebsmittel.js";
-import unrulyperson from "./unrulyperson.js";
+import checkperson from "./checkperson.js";
 
 export default {
     search,
@@ -34,5 +34,5 @@ export default {
     stv,
     notiz,
     betriebsmittel,
-    unrulyperson
+    checkperson
 };
\ No newline at end of file
diff --git a/public/js/components/Studierendenantrag/Form/AbmeldungStgl.js b/public/js/components/Studierendenantrag/Form/AbmeldungStgl.js
index ccb25a632..ca3bb9fbc 100644
--- a/public/js/components/Studierendenantrag/Form/AbmeldungStgl.js
+++ b/public/js/components/Studierendenantrag/Form/AbmeldungStgl.js
@@ -81,7 +81,7 @@ export default {
 				.then(result => {
 
 					if(this.unrulyInternal) {
-						this.$fhcApi.factory.unrulyperson.updatePersonUnrulyStatus(this.data.person_id, true).then(
+						this.$fhcApi.factory.checkperson.updatePersonUnrulyStatus(this.data.person_id, true).then(
 							(res)=> {
 								if(res?.meta?.status === "success") {
 									this.$fhcAlert.alertSuccess(this.$p.t('studierendenantrag', 'antrag_unruly_updated'))
diff --git a/public/js/infocenter/infocenterDetails.js b/public/js/infocenter/infocenterDetails.js
index 186479a8f..35da8f584 100644
--- a/public/js/infocenter/infocenterDetails.js
+++ b/public/js/infocenter/infocenterDetails.js
@@ -847,4 +847,4 @@ var InfocenterDetails = {
 	{
 		return elementid.substr(elementid.indexOf("_") + 1);
 	}
-};
+};
\ No newline at end of file
diff --git a/public/js/infocenter/personcheck.js b/public/js/infocenter/personcheck.js
new file mode 100644
index 000000000..55ada0b11
--- /dev/null
+++ b/public/js/infocenter/personcheck.js
@@ -0,0 +1,71 @@
+$(document).ready(function ()
+{
+	if(viewData?.checkPerson?.unruly?.length) {
+		const unruly = document.getElementById('unruly')
+		unruly.setAttribute('style', 'display: block;')
+	}
+
+	if(viewData?.checkPerson?.duplicate?.length) {
+		const duplicate = document.getElementById('duplicate')
+		duplicate.setAttribute('style', 'display: block;')
+	}
+
+
+});
+
+var PersonCheck = {
+	update: function(data)
+	{
+		// format date according to db
+		if(data.gebdatum) {
+			const [day, month, year] = data.gebdatum.split('.');
+			data.gebdatum = year + '-' + month + '-' + day
+		}
+
+		FHC_AjaxClient.ajaxCallPost(
+			'api/frontend/v1/checkperson/CheckPerson/checkUnruly',
+			data,
+			{
+				successCallback: function(response, textStatus, jqXHR) {
+					if (response?.meta?.status === 'success')
+					{
+						PersonCheck._updatedUnruly(response);
+					}
+					else
+					{
+						FHC_DialogLib.alertError('unruly error');
+					}
+				},
+				errorCallback: function() {
+					FHC_DialogLib.alertWarning("Fehler beim Speichern!");
+				}
+			}
+		);
+
+	},
+
+	_updatedUnruly: function(response)
+	{
+		const unruly = document.getElementById('unruly')
+
+		if(response?.data?.retval?.length) {
+			viewData.checkPerson.unruly = response?.data?.retval
+
+			// replace existing elements
+			const unrulylist = document.getElementById('unrulylist')
+			const newUnrulyPeople = []
+			viewData.checkPerson.unruly.forEach(u => {
+				newUnrulyPeople.push(document.createTextNode("Person ID: " + u.person_id))
+				newUnrulyPeople.push(document.createElement('br'))
+			})
+			unrulylist.replaceChildren(...newUnrulyPeople)
+
+			// and show it all
+			unruly.setAttribute('style', 'display: block;')
+		} else {
+			// just hide everything
+			unruly.setAttribute('style', 'display: none;')
+		}
+
+	},
+}
\ No newline at end of file
diff --git a/public/js/infocenter/stammdaten.js b/public/js/infocenter/stammdaten.js
index d83690b04..c7600f677 100644
--- a/public/js/infocenter/stammdaten.js
+++ b/public/js/infocenter/stammdaten.js
@@ -14,6 +14,7 @@ $(document).ready(function ()
 
 	$('.saveStammdaten').click(function()
 	{
+
 		var kontakt = [];
 		$('.kontakt_input').each(function(){
 			kontakt.push({
@@ -62,15 +63,16 @@ var Stammdaten = {
 			CALLED_PATH + "/updateStammdaten/",
 			data,
 			{
-				successCallback: function(data, textStatus, jqXHR) {
-					if (FHC_AjaxClient.isSuccess(data))
+				successCallback: function(response, textStatus, jqXHR) {
+					if (FHC_AjaxClient.isSuccess(response))
 					{
 						FHC_DialogLib.alertSuccess("Done!");
 						Stammdaten._updated();
+						PersonCheck.update(data)
 					}
 					else
 					{
-						FHC_DialogLib.alertError(FHC_AjaxClient.getError(data));
+						FHC_DialogLib.alertError(FHC_AjaxClient.getError(response));
 					}
 				},
 				errorCallback: function() {
@@ -149,6 +151,7 @@ var Stammdaten = {
 
 	_updated: function()
 	{
+
 		$('.kontakt_input').each(function() {
 			var span = $(this).parent('td').children('span');
 			var value = $(this).val();
diff --git a/system/phrasesupdate.php b/system/phrasesupdate.php
index 27458209a..da7d109dc 100644
--- a/system/phrasesupdate.php
+++ b/system/phrasesupdate.php
@@ -2670,7 +2670,7 @@ $phrases = array(
 		'phrases' => array(
 			array(
 				'sprache' => 'German',
-				'text' => 'Unerwünscht',
+				'text' => 'Unruly',
 				'description' => '',
 				'insertvon' => 'system'
 			),
@@ -5349,7 +5349,7 @@ The invoice will be sent to you again. <u><strong>The amount is only to be trans
 		'phrases' => array(
 			array(
 				'sprache' => 'German',
-				'text' => 'Unerwünschte Person wurde gefunden',
+				'text' => 'Unruly Person wurde gefunden',
 				'description' => '',
 				'insertvon' => 'system'
 			),
@@ -20838,7 +20838,7 @@ array(
 		'phrases' => array(
 			array(
 				'sprache' => 'German',
-				'text' => 'Unerwünscht',
+				'text' => 'Unruly',
 				'description' => '',
 				'insertvon' => 'system'
 			),
@@ -20858,7 +20858,7 @@ array(
 		'phrases' => array(
 			array(
 				'sprache' => 'German',
-				'text' => 'Unerwünschte Person Status wurde aktualisiert.',
+				'text' => 'Unruly Person Status wurde aktualisiert.',
 				'description' => '',
 				'insertvon' => 'system'
 			),
@@ -23219,7 +23219,7 @@ array(
 		'phrases' => array(
 			array(
 				'sprache' => 'German',
-				'text' => 'Person ist unerwünscht',
+				'text' => 'Person ist unruly',
 				'description' => '',
 				'insertvon' => 'system'
 			),
@@ -23419,7 +23419,7 @@ array(
 		'phrases' => array(
 			array(
 				'sprache' => 'German',
-				'text' => 'Person ist unerwünscht',
+				'text' => 'Person ist unruly.',
 				'description' => '',
 				'insertvon' => 'system'
 			),