diff --git a/application/models/crm/Prestudentstatus_model.php b/application/models/crm/Prestudentstatus_model.php
index ddeeba20c..6405569db 100644
--- a/application/models/crm/Prestudentstatus_model.php
+++ b/application/models/crm/Prestudentstatus_model.php
@@ -24,15 +24,6 @@ class Prestudentstatus_model extends DB_Model
 		$this->dbTable = 'public.tbl_prestudentstatus';
 		$this->pk = array('ausbildungssemester', 'studiensemester_kurzbz', 'status_kurzbz', 'prestudent_id');
 		$this->hasSequence = false;
-
-/*		$CI =& get_instance();
-
-		$CI->load->library('PhrasesLib');
-
-		// Load language phrases
-		$CI->loadPhrases([
-			'ui', 'lehre'
-		]);*/
 	}
 
 	/**
@@ -390,20 +381,6 @@ class Prestudentstatus_model extends DB_Model
 		return success(false, $this->p->t('lehre', 'anzahl_existingRoles', ['anzahl' => $anzahl]));
 	}
 
-	/**
-	 * Check if there is only one "Student" prestudentstatus left
-	 *
-	 * @param integer					$prestudent_id
-	 *
-	 * @return stdClass
-	 */
-	public function checkIfLastStudentStatusEntry($prestudent_id)
-	{
-		$this->db->where('status_kurzbz', self::STATUS_STUDENT);
-		
-		return $this->checkIfLastStatusEntry($prestudent_id);
-	}
-
 	public function getAllPrestudentstatiWithStudiensemester($prestudent_id)
 	{
 		$qry = "
diff --git a/application/models/crm/Student_model.php b/application/models/crm/Student_model.php
index fec72cbfc..adeef07fc 100644
--- a/application/models/crm/Student_model.php
+++ b/application/models/crm/Student_model.php
@@ -176,34 +176,6 @@ class Student_model extends DB_Model
 		return $result->retval[0]->student_uid;
 	}
 
-	/**
-	 * Get students UID by PrestudentID.
-	 * @param $prestudent_id
-	 * @return mixed
-	 */
-	public function checkIfUID($prestudent_id)
-	{
-		$this->addSelect('student_uid');
-
-		$result = $this->loadWhere(
-			array('prestudent_id' => $prestudent_id)
-		);
-
-		if(isError($result))
-		{
-			return error("Error while checking student_uid");
-		}
-
-		if (!hasData($result))
-		{
-			return success("0", "Keine Student_uid vorhanden");
-		}
-
-		$student_uid = $result->retval[0]->student_uid;
-
-		return success($student_uid);
-	}
-
 	public function searchStudent($filter)
 	{
 		$this->addSelect('vorname, nachname, gebdatum, person.person_id, student_uid');
diff --git a/application/models/education/Studentlehrverband_model.php b/application/models/education/Studentlehrverband_model.php
index e3c96c2ac..e4eabe89d 100644
--- a/application/models/education/Studentlehrverband_model.php
+++ b/application/models/education/Studentlehrverband_model.php
@@ -15,42 +15,6 @@ class Studentlehrverband_model extends DB_Model
 		$this->load->model('crm/prestudentstatus_model', 'PrestudentstatusModel');
 	}
 
-	/**
-	 * Check if Studentlehrverband already exists
-	 *
-	 * @param string $student_id
-	 *
-	 * @param string $studiensemester_kurzbz
-	 *
-	 * @return 1: if Studentlehrverband exists, 0: if it doesn't
-	 */
-	public function checkIfStudentlehrverbandExists($student_uid, $studiensemester_kurzbz)
-	{
-		$qry = "SELECT
-					*
-				FROM 
-				    public.tbl_studentlehrverband
-				WHERE
-					student_uid = ? 
-				AND
-				    studiensemester_kurzbz = ?";
-
-		$result = $this->execQuery($qry, array($student_uid, $studiensemester_kurzbz));
-
-		if (isError($result))
-		{
-			return error($result);
-		}
-		elseif (!hasData($result))
-		{
-			return success("0", $this->p->t('lehre', 'error_noStudentlehrverband'));
-		}
-		else
-		{
-			return success("1", $this->p->t('lehre', 'error_updateStudentlehrverband'));
-		}
-	}
-
 	/**
 	 * update Lehrverband and Studenlehrverband
 	 *
diff --git a/application/models/organisation/Standort_model.php b/application/models/organisation/Standort_model.php
index d46dad1c6..aeeab4497 100644
--- a/application/models/organisation/Standort_model.php
+++ b/application/models/organisation/Standort_model.php
@@ -29,23 +29,6 @@ class Standort_model extends DB_Model
 		return $this->execQuery($qry);
 	}
 
-/*	public function searchStandorteByFirma($filter)
-	{
-		$filter = strtoLower($filter);
-		$qry = "
-			SELECT 
-				s.kurzbz, s.standort_id
-			FROM 
-			    public.tbl_firma f
-			LEFT JOIN 
-			        public.tbl_standort s ON(f.firma_id = s.firma_id)
-			WHERE 
-			    f.firma_id = '". $this->db->escape_like_str($filter)."'";
-
-
-		return $this->execQuery($qry);
-	}*/
-
 	public function getStandorteByFirma($firma_id)
 	{
 		$this->addSelect("DISTINCT ON (standort_id) bezeichnung, standort_id");
diff --git a/application/models/person/Adresse_model.php b/application/models/person/Adresse_model.php
index cc6d68673..4dd03ea6b 100644
--- a/application/models/person/Adresse_model.php
+++ b/application/models/person/Adresse_model.php
@@ -24,51 +24,4 @@ class Adresse_model extends DB_Model
 		$this->addSelect($select);
 		return $this->loadWhere(array('person_id' => $person_id, 'zustelladresse'=> true));
 	}
-
-	/**
-	 * Get Array of Names of Gemeinden having Postleitzahl
-	 * @param integer $plz Postleitzahl
-	 * @return array $result[]
-	 */
-	public function getGemeinden($plz)
-	{
-		$qry = "
-			SELECT distinct
-				g.name
-			FROM bis.tbl_gemeinde g
-			WHERE g.plz=?
-			ORDER BY g.name
-			";
-
-		return $this->execQuery($qry, array($plz));
-	}
-
-	/**
-	 * Get Array of Names of Ortschaften having Postleitzahl
-	 * @param integer $plz Postleitzahl
-	 * @param String $gemeindename Name Gemeinde
-	 * @return array $result[]
-	 */
-	public function getOrtschaften($plz, $gemeinde=null)
-	{
-		$params = array($plz);
-		$qry = "
-			SELECT distinct
-				g.ortschaftsname
-			FROM bis.tbl_gemeinde g
-			WHERE g.plz=? ";
-
-		if (isset($gemeinde))
-		{
-			$qry .= "AND g.name=?";
-			$params[] = $gemeinde;
-		}
-
-		$qry .=	"ORDER BY g.ortschaftsname";
-
-		return $this->execQuery($qry, $params);
-	}
-}
-
-
-
+}
\ No newline at end of file
diff --git a/application/models/person/Notiz_model.php b/application/models/person/Notiz_model.php
index d3bed7e56..349eaac60 100644
--- a/application/models/person/Notiz_model.php
+++ b/application/models/person/Notiz_model.php
@@ -133,141 +133,6 @@ class Notiz_model extends DB_Model
 		return $result;
 	}
 
-	/**
-	 * Add a Notiz with Notizuordnung for a given type
-	 * @param type type of id for Notizzuordnung (example: person, prestudent, mitarbeiter, projekt, projektphase, projekttask,
-	 *        bestellung, lehreinheit, anrechnung)
-	 * @param id for Dokumentzuordnung (person_id, prestudent_id, uid, projekt_id...)
-	 * @param titel, text, start, ende, erledigt, verfasser_uid, bearbeiter_uid, insertvon Parameter for notiz
-	 */
-	public function addNotizForType(
-		$type,
-		$id,
-		$titel,
-		$text,
-		$insertvon,
-		$start = null,
-		$ende = null,
-		$erledigt = false,
-		$verfasser_uid = null,
-		$bearbeiter_uid = null
-	) {
-
-		//check, ob id und type valid
-		if (!isset($id) || ($id == "undefined")) {
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-			return error("Id(". $id. ') ist keine gültige ID!');
-		}
-
-		// Loads model Notizzuordnung_model
-		$this->load->model('person/Notizzuordnung_model', 'NotizzuordnungModel');
-
-		//check if valid type
-		$result = $this->NotizzuordnungModel->isValidType($type);
-		if (isError($result))
-		{
-			$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-			return error($type . ' ist kein gültiger ID_TYP!');
-		}
-
-		// Start DB transaction
-		$this->db->trans_start(false);
-
-		$result = $this->insert(array('titel' => $titel, 'text' => $text, 'erledigt' => $erledigt, 'verfasser_uid' => $verfasser_uid,
-			"insertvon" => $insertvon, 'start' => $start, 'ende' => $ende, 'bearbeiter_uid' => $bearbeiter_uid));
-
-		if (isSuccess($result))
-		{
-			$notiz_id = $result->retval;
-
-			if($type == "software_id")
-			{
-				// Loads extension Model
-				$this->load->model('extensions/FHC-Core-Softwarebereitstellung/Softwarenotizzuordnung_model', 'ExtensionnotizzuordnungModel');
-				$result = $this->ExtensionnotizzuordnungModel->insert([
-					'notiz_id' => $notiz_id,
-					'id' => $id,
-					'type_id' => $type
-				]);
-			}
-			else
-			{
-				$result = $this->NotizzuordnungModel->insert(array('notiz_id' => $notiz_id, $type => $id));
-			}
-			if (isError($result))
-			{
-				$this->output->set_status_header(REST_Controller::HTTP_INTERNAL_SERVER_ERROR);
-				return error('Fehler Insert Zuordnungstabelle');
-			}
-		}
-
-
-		// Transaction complete!
-		$this->db->trans_complete();
-
-		// Check if everything went ok during the transaction
-		if ($this->db->trans_status() === false || isError($result))
-		{
-			$this->db->trans_rollback();
-			$result = error($result->msg, EXIT_ERROR);
-		}
-		else
-		{
-			$this->db->trans_commit();
-			$result = success($notiz_id);
-		}
-
-		return $result;
-	}
-
-	/**
-	 * Add a Notiz for a given person with DMS_id
-	 *
-	 */
-	//Todo(manu) deprecated?
-/*	public function addNotizForPersonWithDoc($person_id, $titel, $text, $erledigt, $verfasser_uid, $von, $bis, $dms_id = null)
-	{
-		// Loads model Notizzuordnung_model
-		$this->load->model('person/Notizzuordnung_model', 'NotizzuordnungModel');
-
-		// Start DB transaction
-		$this->db->trans_start(false);
-
-		$result = $this->insert(array('titel' => $titel, 'text' => $text, 'erledigt' => $erledigt, 'verfasser_uid' => $verfasser_uid,
-			"insertvon" => $verfasser_uid, 'start' => $von, 'ende' => $bis));
-
-		if (isSuccess($result))
-		{
-			$notiz_id = $result->retval;
-			$result = $this->NotizzuordnungModel->insert(array('notiz_id' => $notiz_id, 'person_id' => $person_id));
-
-			if($dms_id)
-			{
-				// Loads model Notizdokument_model
-				$this->load->model('person/Notizdokument_model', 'NotizdokumentModel');
-
-				$result = $this->NotizdokumentModel->insert(array('notiz_id' => $notiz_id, 'dms_id' => $dms_id));
-			}
-		}
-
-		// Transaction complete!
-		$this->db->trans_complete();
-
-		// Check if everything went ok during the transaction
-		if ($this->db->trans_status() === false || isError($result))
-		{
-			$this->db->trans_rollback();
-			$result = error($result->msg, EXIT_ERROR);
-		}
-		else
-		{
-			$this->db->trans_commit();
-			$result = success($notiz_id);
-		}
-
-		return $result;
-	}*/
-
 	/**
 	 * gets all Notizen for a person
 	 * @param $person_id
diff --git a/application/models/person/Person_model.php b/application/models/person/Person_model.php
index 31b7b03b7..88813220e 100644
--- a/application/models/person/Person_model.php
+++ b/application/models/person/Person_model.php
@@ -374,6 +374,5 @@ class Person_model extends DB_Model
 			'prestudent_id' => $prestudent_id
 		]);
 	}
-
 }