diff --git a/apps/paf/fields/index.js b/apps/paf/fields/index.js
index 622894da..00f54f64 100644
--- a/apps/paf/fields/index.js
+++ b/apps/paf/fields/index.js
@@ -582,7 +582,7 @@ module.exports = {
   },
   'crime-location-phone': {
     className: ['govuk-input', 'govuk-input--width-20'],
-    validate: [{ type: 'maxlength', arguments: 20 }]
+    validate: ['required', { type: 'maxlength', arguments: 20 }]
   },
   'crime-another-location': {
     isPageHeading: true,
@@ -646,7 +646,7 @@ module.exports = {
   },
   'crime-another-location-phone': {
     className: ['govuk-input', 'govuk-input--width-20'],
-    validate: [{ type: 'maxlength', arguments: 20 }]
+    validate: ['required', { type: 'maxlength', arguments: 20 }]
   },
   'report-person': {
     mixin: 'radio-group',
@@ -796,7 +796,7 @@ module.exports = {
   },
   'report-person-location-phone': {
     className: ['govuk-input', 'govuk-input--width-20'],
-    validate: [{ type: 'maxlength', arguments: 20 }]
+    validate: ['required', { type: 'maxlength', arguments: 20 }]
   },
   'report-person-location-email': {
     validate: ['email', { type: 'maxlength', arguments: 100 }]
@@ -880,7 +880,7 @@ module.exports = {
   },
   'report-person-occupation-company-phone': {
     className: ['govuk-input', 'govuk-input--width-20'],
-    validate: [{ type: 'maxlength', arguments: 20 }]
+    validate: ['required', { type: 'maxlength', arguments: 20 }]
   },
   'report-person-occupation-company-manager': {
     mixin: 'input-text',
@@ -940,7 +940,7 @@ module.exports = {
   },
   'report-person-study-phone': {
     className: ['govuk-input', 'govuk-input--width-20'],
-    validate: [{ type: 'maxlength', arguments: 20 }]
+    validate: ['required', { type: 'maxlength', arguments: 20 }]
   },
   'report-person-study-email': {
     validate: ['email', { type: 'maxlength', arguments: 100 }]
@@ -1196,7 +1196,7 @@ module.exports = {
   },
   'company-phone': {
     className: ['govuk-input', 'govuk-input--width-20'],
-    validate: [{ type: 'maxlength', arguments: 20 }]
+    validate: ['required', { type: 'maxlength', arguments: 20 }]
   },
   'company-email': {
     formatter: ['removespaces'],
diff --git a/apps/paf/translations/src/en/validation.json b/apps/paf/translations/src/en/validation.json
index 1b086f69..76a16e95 100644
--- a/apps/paf/translations/src/en/validation.json
+++ b/apps/paf/translations/src/en/validation.json
@@ -93,12 +93,19 @@
     "maxlength": "You can't use more than {{maxlength}} characters for your answer"
   },
   "crime-location-phone": {
+    "required": "Enter a valid phone number",
+    "maxlength": "You can't use more than {{maxlength}} characters for your answer"
+  },
+
+  "report-person-study-phone": {
+    "required": "Enter a valid phone number",
     "maxlength": "You can't use more than {{maxlength}} characters for your answer"
   },
   "crime-another-location-address-postcode": {
     "maxlength": "You can't use more than {{maxlength}} characters for your answer"
   },
   "crime-another-location-phone": {
+    "required": "Enter a valid phone number",
     "maxlength": "You can't use more than {{maxlength}} numbers for your answer"
   },
   "report-person-first-name": {
@@ -130,6 +137,7 @@
     "maxlength": "You can't use more than {{maxlength}} characters for your answer"
   },
   "report-person-location-phone": {
+    "required": "Enter a valid phone number",
     "maxlength": "You can't use more than {{maxlength}} characters for your answer"
   },
   "report-person-location-email": {
@@ -156,6 +164,11 @@
     "maxlength": "You can't use more than {{maxlength}} characters for your answer"
   },
   "report-person-occupation-company-phone": {
+    "required": "Enter a valid phone number",
+    "maxlength": "You can't use more than {{maxlength}} characters for your answer"
+  },
+  "company-phone": {
+    "required": "Enter a valid phone number",
     "maxlength": "You can't use more than {{maxlength}} characters for your answer"
   },
   "report-person-occupation-company-manager": {