diff --git a/controller/search.js b/controller/search.js
index 8af6bec4..7e17b0bd 100644
--- a/controller/search.js
+++ b/controller/search.js
@@ -1,4 +1,3 @@
-
 var service = { search: require('../service/search') };
 
 function setup( backend, query ){
diff --git a/helper/layers.js b/helper/layers.js
index aa625a6e..a5a57d7f 100644
--- a/helper/layers.js
+++ b/helper/layers.js
@@ -1,6 +1,6 @@
 module.exports = function(alias_layers) {
   // make a copy of the array so, you are not modifying original ref
-  var layers = alias_layers.slice(0); 
+  var layers = alias_layers.slice(0);
 
   // expand aliases
   var expand_aliases = function(alias, layers, layer_indeces) {
diff --git a/helper/query_parser.js b/helper/query_parser.js
index 88729c86..7c5ba4b0 100644
--- a/helper/query_parser.js
+++ b/helper/query_parser.js
@@ -5,7 +5,7 @@ var get_layers = require('../helper/layers');
 var delim      = ',';
 
 module.exports = function(query) {
-  
+
   var tokenized = query.split(/[ ,]+/);
   var hasNumber = /\d/.test(query);
 
@@ -17,11 +17,11 @@ module.exports = function(query) {
     if ( delimIndex !== -1 ) {
       address.name = query.substring(0, delimIndex);
       address.admin_parts = query.substring(delimIndex + 1).trim();
-    }  
+    }
 
     return address;
   };
-  
+
   var getTargetLayersWhenAddressParsingIsNotNecessary = function(query) {
     var address = {};
     // set target_layer if input length <= 3 characters
@@ -32,7 +32,7 @@ module.exports = function(query) {
       // no need to hit address layers if there's only one (or two) token(s)
       address.target_layer = get_layers(['admin', 'poi']);
     }
-    
+
     return address.target_layer ? address : null;
   };
 
@@ -49,10 +49,10 @@ module.exports = function(query) {
 
   var addressWithAdminParts  = getAdminPartsBySplittingOnDelim(query);
   var addressWithTargetLayers= getTargetLayersWhenAddressParsingIsNotNecessary(query);
-  var addressWithAddressParts= !addressWithTargetLayers ? getAddressParts(query) : {}; 
+  var addressWithAddressParts= !addressWithTargetLayers ? getAddressParts(query) : {};
 
-  var parsedAddress  = extend(addressWithAdminParts, 
-                              addressWithTargetLayers, 
+  var parsedAddress  = extend(addressWithAdminParts,
+                              addressWithTargetLayers,
                               addressWithAddressParts);
 
   var address_parts  =  [ 'name',
@@ -69,7 +69,7 @@ module.exports = function(query) {
 
   var parsed_input = {};
 
-  address_parts.forEach(function(part){ 
+  address_parts.forEach(function(part){
     if (parsedAddress[part]) {
       parsed_input[part] = parsedAddress[part];
     }
@@ -90,4 +90,4 @@ module.exports = function(query) {
 //   regions: parsedAddress.regions,
 //   admin_parts: parsedAddress.admin_parts,
 //   target_layer: parsedAddress.target_layer
-// }
\ No newline at end of file
+// }
diff --git a/sanitiser/_id.js b/sanitiser/_id.js
index ac2432e6..a8424363 100644
--- a/sanitiser/_id.js
+++ b/sanitiser/_id.js
@@ -5,7 +5,6 @@ var isObject = require('is-object');
 // so, both type and id are required fields.
 
 function sanitize( req ){
-  
   req.clean   = req.clean || {};
   var params  = req.query;
   var indeces = require('../query/indeces');
@@ -30,7 +29,7 @@ function sanitize( req ){
   if( params && params.id && params.id.length ){
     req.clean.ids = [];
     params.ids = Array.isArray(params.id) ? params.id : [params.id];
-    
+
     // de-dupe
     params.ids = params.ids.filter(function(item, pos) {
       return params.ids.indexOf(item) === pos;
@@ -38,7 +37,7 @@ function sanitize( req ){
 
     for (var i=0; i<params.ids.length; i++) {
       var thisparam = params.ids[i];
-    
+
       // basic format/ presence of ':'
       if(thisparam.indexOf(delim) === -1) {
         return errormessage(null, 'invalid: must be of the format type:id for ex: \'geoname:4163334\'');
@@ -66,10 +65,9 @@ function sanitize( req ){
       });
     }
   }
-  
-  return { 'error': false };
 
+  return { 'error': false };
 }
 
 // export function
-module.exports = sanitize;
\ No newline at end of file
+module.exports = sanitize;
diff --git a/sanitiser/_input.js b/sanitiser/_input.js
index 6be54b98..d73048a0 100644
--- a/sanitiser/_input.js
+++ b/sanitiser/_input.js
@@ -3,10 +3,9 @@ var query_parse= require('../helper/query_parser');
 
 // validate inputs, convert types and apply defaults
 function sanitize( req ){
-  
   req.clean = req.clean || {};
   var params= req.query;
-  
+
   // ensure the input params are a valid object
   if( !isObject( params ) ){
     params = {};
@@ -14,20 +13,18 @@ function sanitize( req ){
 
   // input text
   if('string' !== typeof params.input || !params.input.length){
-    return { 
+    return {
       'error': true,
       'message': 'invalid param \'input\': text length, must be >0'
     };
   }
-  
+
   req.clean.input = params.input;
 
   req.clean.parsed_input = query_parse(params.input);
 
-
   return { 'error': false };
-
 }
 
 // export function
-module.exports = sanitize;
\ No newline at end of file
+module.exports = sanitize;
diff --git a/sanitiser/_layers.js b/sanitiser/_layers.js
index fa44336e..2ad5c42f 100644
--- a/sanitiser/_layers.js
+++ b/sanitiser/_layers.js
@@ -5,7 +5,6 @@ var isObject = require('is-object'),
 
 // validate inputs, convert types and apply defaults
 function sanitize( req ){
-  
   var clean = req.clean || {};
   var params= req.query;
 
@@ -42,7 +41,7 @@ function sanitize( req ){
   // pass validated params to next middleware
   clean.layers = get_layers(layers);
   req.clean = clean;
-  
+
   return { 'error': false };
 
 }
diff --git a/test/unit/helper/query_parser.js b/test/unit/helper/query_parser.js
index bf10b154..c82a31a2 100644
--- a/test/unit/helper/query_parser.js
+++ b/test/unit/helper/query_parser.js
@@ -67,13 +67,13 @@ module.exports.tests.parse_one_or_more_tokens = function(test, common) {
       var target_layer = get_layers(['admin', 'poi']);
 
       t.equal(typeof address, 'object', 'valid object');
-      
+
       if (parse_address) {
         t.deepEqual(address.regions.join(''), query, 'since query contained a number, it went through address parsing');
       } else {
-        t.deepEqual(address.target_layer, target_layer, 'admin_parts set correctly to ' + target_layer.join(', '));  
+        t.deepEqual(address.target_layer, target_layer, 'admin_parts set correctly to ' + target_layer.join(', '));
       }
-      
+
       t.end();
     });
   };
@@ -88,32 +88,32 @@ module.exports.tests.parse_one_or_more_tokens = function(test, common) {
 };
 
 module.exports.tests.parse_address = function(test, common) {
-  var addresses_nonum  = [{ non_street: 'main particle', city: 'new york'}, 
-                          { non_street: 'biggg city block' }, 
+  var addresses_nonum  = [{ non_street: 'main particle', city: 'new york'},
+                          { non_street: 'biggg city block' },
                           { non_street: 'the empire state building' }
                          ];
-  var address_with_num = [{ number: 123, street: 'main st', city: 'new york', state: 'ny'}, 
-                          { number: 456, street: 'pine ave', city: 'san francisco', state: 'CA'}, 
+  var address_with_num = [{ number: 123, street: 'main st', city: 'new york', state: 'ny'},
+                          { number: 456, street: 'pine ave', city: 'san francisco', state: 'CA'},
                           { number: 1980, street: 'house st', city: 'hoboken', state: 'NY'}
                          ];
-  var address_with_zip = [{ number: 1, street: 'main st', city: 'new york', state: 'ny', zip: 10010}, 
-                          { number: 4, street: 'ape ave', city: 'san diego', state: 'CA', zip: 98970}, 
+  var address_with_zip = [{ number: 1, street: 'main st', city: 'new york', state: 'ny', zip: 10010},
+                          { number: 4, street: 'ape ave', city: 'san diego', state: 'CA', zip: 98970},
                           { number: 19, street: 'house dr', city: 'houston', state: 'TX', zip: 79089}
                          ];
 
   var testParse = function(query, hasNumber, hasZip) {
-    var testcase = 'parse query with ' + (hasNumber ? 'a house number ': 'no house number '); 
+    var testcase = 'parse query with ' + (hasNumber ? 'a house number ': 'no house number ');
     testcase += 'and ' + (hasZip ? 'a zip ' : 'no zip ');
 
     test(testcase, function(t) {
       var query_string = '';
-      for (var k in query) { 
+      for (var k in query) {
         query_string += ' ' + query[k];
       }
 
       // remove leading whitespace
       query_string = query_string.substring(1);
-      
+
       var address = parser(query_string);
       var non_address_layer = get_layers(['admin', 'poi']);
 
@@ -126,14 +126,14 @@ module.exports.tests.parse_address = function(test, common) {
       }
 
       if ((hasNumber || hasZip) && query.street) {
-        t.equal(typeof address.number, 'number', 'valid house number format (' + address.number + ')');  
+        t.equal(typeof address.number, 'number', 'valid house number format (' + address.number + ')');
         t.equal(address.number, query.number, 'correct house number (' + query.number + ')');
-        t.equal(typeof address.street, 'string', 'valid street name format (' + address.street + ')');  
+        t.equal(typeof address.street, 'string', 'valid street name format (' + address.street + ')');
         t.equal(address.street, query.street, 'correct street name (' + query.street + ')');
       }
-      
+
       if (hasZip) {
-        t.equal(typeof address.postalcode, 'number', 'valid zip (' + address.postalcode + ')');  
+        t.equal(typeof address.postalcode, 'number', 'valid zip (' + address.postalcode + ')');
         t.equal(address.postalcode, query.zip, 'correct postal code (' + query.zip + ')');
       }