diff --git a/src/app/datasets/datasets-filter/datasets-filter.component.html b/src/app/datasets/datasets-filter/datasets-filter.component.html
index 119eb9814..171dc077b 100644
--- a/src/app/datasets/datasets-filter/datasets-filter.component.html
+++ b/src/app/datasets/datasets-filter/datasets-filter.component.html
@@ -173,6 +173,9 @@
               <ng-container *ngSwitchCase="'EQUAL_TO_STRING'">
                 &nbsp;=&nbsp;
               </ng-container>
+              <ng-container *ngSwitchCase="'CONTAINS_STRING'">
+                &nbsp;contains&nbsp;
+              </ng-container>
               <ng-container *ngSwitchCase="'LESS_THAN'">
                 &nbsp;&lt;&nbsp;
               </ng-container>
@@ -181,7 +184,7 @@
               </ng-container>
             </ng-container>
             {{
-              condition.relation === "EQUAL_TO_STRING"
+              ["EQUAL_TO_STRING", "CONTAINS_STRING"].includes(condition.relation)
                 ? '"' + condition.rhs + '"'
                 : condition.rhs
             }}
diff --git a/src/app/samples/sample-dashboard/sample-dashboard.component.html b/src/app/samples/sample-dashboard/sample-dashboard.component.html
index c7694a8fc..1d4eb0acf 100644
--- a/src/app/samples/sample-dashboard/sample-dashboard.component.html
+++ b/src/app/samples/sample-dashboard/sample-dashboard.component.html
@@ -48,6 +48,9 @@
                     <ng-container *ngSwitchCase="'EQUAL_TO_STRING'">
                       &nbsp;=&nbsp;
                     </ng-container>
+                    <ng-container *ngSwitchCase="'CONTAINS_STRING'">
+                      &nbsp;=&nbsp;
+                    </ng-container>
                     <ng-container *ngSwitchCase="'LESS_THAN'">
                       &nbsp;&lt;&nbsp;
                     </ng-container>
@@ -56,7 +59,7 @@
                     </ng-container>
                   </ng-container>
                   {{
-                    characteristic.relation === "EQUAL_TO_STRING"
+                    [ "EQUAL_TO_STRING", "CONTAINS_STRING" ].includes(characteristic.relation)
                       ? '"' + characteristic.rhs + '"'
                       : characteristic.rhs
                   }}
diff --git a/src/app/shared/modules/search-parameters-dialog/search-parameters-dialog.component.html b/src/app/shared/modules/search-parameters-dialog/search-parameters-dialog.component.html
index 9be96519c..d1225e411 100644
--- a/src/app/shared/modules/search-parameters-dialog/search-parameters-dialog.component.html
+++ b/src/app/shared/modules/search-parameters-dialog/search-parameters-dialog.component.html
@@ -1,93 +1,94 @@
-<h2 mat-dialog-title>Add Characteristic</h2>
-<form [formGroup]="parametersForm">
-  <mat-dialog-content>
-    <mat-form-field>
-      <mat-label>Field</mat-label>
-      <input
-        matInput
-        autocomplete="off"
-        autocorrect="off"
-        autocapitalize="off"
-        spellcheck="false"
-        name="lhs"
-        formControlName="lhs"
-        [matAutocomplete]="parameterKeys"
-        (blur)="getUnits(lhs)"
-        (focus)="toggleUnitField()"
-      />
-      <mat-autocomplete #parameterKeys="matAutocomplete">
-        <mat-option
-          *ngFor="let key of filteredKeys$ | async"
-          [value]="key"
-          [matTooltip]="key"
-        >
-          {{ key }}
-        </mat-option>
-      </mat-autocomplete>
-    </mat-form-field>
-
-    <mat-form-field>
-      <mat-label>Operator</mat-label>
-      <mat-select
-        name="operator"
-        formControlName="relation"
-        (focus)="toggleUnitField()"
-        (selectionChange)="toggleUnitField()"
-      >
-        <mat-option value="GREATER_THAN">is greater than</mat-option>
-        <mat-option value="LESS_THAN">is less than</mat-option>
-        <mat-option value="EQUAL_TO_NUMERIC">is equal to (numeric)</mat-option>
-        <mat-option value="EQUAL_TO_STRING">is equal to (string)</mat-option>
-      </mat-select>
-    </mat-form-field>
-
-    <mat-form-field>
-      <mat-label>Value</mat-label>
-      <input
-        matInput
-        autocomplete="off"
-        autocorrect="off"
-        autocapitalize="off"
-        spellcheck="false"
-        name="rhs"
-        formControlName="rhs"
-      />
-    </mat-form-field>
-
-    <ng-template [ngIf]="unitsEnabled">
-      <mat-form-field>
-        <mat-label>Unit</mat-label>
-        <input
-          matInput
-          autocomplete="off"
-          autocorrect="off"
-          autocapitalize="off"
-          spellcheck="false"
-          name="rhsUnit"
-          formControlName="unit"
-          [matAutocomplete]="rhsUnits"
-        />
-        <mat-autocomplete #rhsUnits="matAutocomplete">
-          <mat-option
-            *ngFor="let unit of filteredUnits$ | async"
-            [value]="unit"
-          >
-            {{ unit }}
-          </mat-option>
-        </mat-autocomplete>
-      </mat-form-field>
-    </ng-template>
-  </mat-dialog-content>
-  <mat-dialog-actions [attr.align]="'end'">
-    <button mat-button (click)="cancel()">Cancel</button>
-    <button
-      mat-button
-      type="submit"
-      (click)="add()"
-      color="primary"
-      [disabled]="isInvalid()"
-    >
-      Add
-    </button>
-  </mat-dialog-actions>
-</form>
+<h2 mat-dialog-title>Add Characteristic</h2>
+<form [formGroup]="parametersForm">
+  <mat-dialog-content>
+    <mat-form-field>
+      <mat-label>Field</mat-label>
+      <input
+        matInput
+        autocomplete="off"
+        autocorrect="off"
+        autocapitalize="off"
+        spellcheck="false"
+        name="lhs"
+        formControlName="lhs"
+        [matAutocomplete]="parameterKeys"
+        (blur)="getUnits(lhs)"
+        (focus)="toggleUnitField()"
+      />
+      <mat-autocomplete #parameterKeys="matAutocomplete">
+        <mat-option
+          *ngFor="let key of filteredKeys$ | async"
+          [value]="key"
+          [matTooltip]="key"
+        >
+          {{ key }}
+        </mat-option>
+      </mat-autocomplete>
+    </mat-form-field>
+
+    <mat-form-field>
+      <mat-label>Operator</mat-label>
+      <mat-select
+        name="operator"
+        formControlName="relation"
+        (focus)="toggleUnitField()"
+        (selectionChange)="toggleUnitField()"
+      >
+        <mat-option value="GREATER_THAN">is greater than</mat-option>
+        <mat-option value="LESS_THAN">is less than</mat-option>
+        <mat-option value="EQUAL_TO_NUMERIC">is equal to (numeric)</mat-option>
+        <mat-option value="EQUAL_TO_STRING">is equal to (string)</mat-option>
+        <mat-option value="CONTAINS_STRING">contains string</mat-option>
+      </mat-select>
+    </mat-form-field>
+
+    <mat-form-field>
+      <mat-label>Value</mat-label>
+      <input
+        matInput
+        autocomplete="off"
+        autocorrect="off"
+        autocapitalize="off"
+        spellcheck="false"
+        name="rhs"
+        formControlName="rhs"
+      />
+    </mat-form-field>
+
+    <ng-template [ngIf]="unitsEnabled">
+      <mat-form-field>
+        <mat-label>Unit</mat-label>
+        <input
+          matInput
+          autocomplete="off"
+          autocorrect="off"
+          autocapitalize="off"
+          spellcheck="false"
+          name="rhsUnit"
+          formControlName="unit"
+          [matAutocomplete]="rhsUnits"
+        />
+        <mat-autocomplete #rhsUnits="matAutocomplete">
+          <mat-option
+            *ngFor="let unit of filteredUnits$ | async"
+            [value]="unit"
+          >
+            {{ unit }}
+          </mat-option>
+        </mat-autocomplete>
+      </mat-form-field>
+    </ng-template>
+  </mat-dialog-content>
+  <mat-dialog-actions [attr.align]="'end'">
+    <button mat-button (click)="cancel()">Cancel</button>
+    <button
+      mat-button
+      type="submit"
+      (click)="add()"
+      color="primary"
+      [disabled]="isInvalid()"
+    >
+      Add
+    </button>
+  </mat-dialog-actions>
+</form>
diff --git a/src/app/shared/modules/search-parameters-dialog/search-parameters-dialog.component.spec.ts b/src/app/shared/modules/search-parameters-dialog/search-parameters-dialog.component.spec.ts
index 5865322f8..e69dc06b0 100644
--- a/src/app/shared/modules/search-parameters-dialog/search-parameters-dialog.component.spec.ts
+++ b/src/app/shared/modules/search-parameters-dialog/search-parameters-dialog.component.spec.ts
@@ -107,7 +107,7 @@ describe("SearchParametersDialogComponent", () => {
   });
 
   describe("#toggleUnitField()", () => {
-    it("should enable unitField if lhs is valid and relation is not EQUAL_TO_STRING", () => {
+    it("should enable unitField if lhs is valid and relation is not CONTAINS_STRING or EQUAL_TO_STRING", () => {
       const formValues = {
         lhs: "mass",
         relation: "LESS_THAN",
diff --git a/src/app/shared/modules/search-parameters-dialog/search-parameters-dialog.component.ts b/src/app/shared/modules/search-parameters-dialog/search-parameters-dialog.component.ts
index e5af6d850..2c54e3233 100644
--- a/src/app/shared/modules/search-parameters-dialog/search-parameters-dialog.component.ts
+++ b/src/app/shared/modules/search-parameters-dialog/search-parameters-dialog.component.ts
@@ -57,8 +57,9 @@ export class SearchParametersDialogComponent {
   add = (): void => {
     const { lhs, relation, unit } = this.parametersForm.value;
     const rawRhs = this.parametersForm.get("rhs")?.value;
-    const rhs =
-      relation === "EQUAL_TO_STRING" ? String(rawRhs) : Number(rawRhs);
+    const rhs = ["CONTAINS_STRING", "EQUAL_TO_STRING"].includes(relation)
+      ? String(rawRhs)
+      : Number(rawRhs);
     this.parametersForm.patchValue({ rhs });
     this.dialogRef.close({ data: { lhs, relation, rhs, unit } });
   };
@@ -73,7 +74,11 @@ export class SearchParametersDialogComponent {
   toggleUnitField = (): void => {
     const lhsInvalid = this.parametersForm.get("lhs")?.invalid;
     const { relation } = this.parametersForm.value;
-    const isStringRelation = relation === "EQUAL_TO_STRING" ? true : false;
+    const isStringRelation = ["CONTAINS_STRING", "EQUAL_TO_STRING"].includes(
+      relation,
+    )
+      ? true
+      : false;
     const unitField = this.parametersForm.get("unit");
     unitField?.enable();
     if (lhsInvalid || isStringRelation) {
@@ -88,7 +93,10 @@ export class SearchParametersDialogComponent {
     if (invalid) {
       return invalid;
     }
-    if (relation !== "EQUAL_TO_STRING" && isNaN(Number(rhs))) {
+    if (
+      !["CONTAINS_STRING", "EQUAL_TO_STRING"].includes(relation) &&
+      isNaN(Number(rhs))
+    ) {
       return true;
     }
     return lhs.length * (rhs as string).length === 0;
diff --git a/src/app/state-management/models/index.ts b/src/app/state-management/models/index.ts
index 12f769a01..fde0343a3 100644
--- a/src/app/state-management/models/index.ts
+++ b/src/app/state-management/models/index.ts
@@ -81,6 +81,7 @@ export enum JobViewMode {
 type ScientificConditionRelation =
   | "EQUAL_TO_NUMERIC"
   | "EQUAL_TO_STRING"
+  | "CONTAINS_STRING"
   | "GREATER_THAN"
   | "LESS_THAN";