diff --git a/categories.py b/categories.py
index 56ee27f12e01f..e5c9abf2f8fad 100644
--- a/categories.py
+++ b/categories.py
@@ -3,6 +3,7 @@
 
 REQUEST_BUILD_RELEASE = [ "nclopezo" , "ktf", "smuzaffar", "degano", "davidlange6", "mark-grimes"  ]
 APPROVE_BUILD_RELEASE = [ "nclopezo" , "ktf", "smuzaffar", "degano", "davidlange6" ]
+TRIGGER_PR_TESTS = [ "nclopezo" , "ktf", "smuzaffar", "degano", "davidlange6" ]
 
 CMSSW_L2 = {
   "Martin-Grunewald": ["hlt"],
diff --git a/process-pull-request b/process-pull-request
index 7b0d511091ff9..4dd2d298088e4 100755
--- a/process-pull-request
+++ b/process-pull-request
@@ -2,7 +2,7 @@
 from github import Github
 from os.path import expanduser
 from optparse import OptionParser
-from categories import CMSSW_CATEGORIES, CMSSW_L2, CMSSW_L1
+from categories import CMSSW_CATEGORIES, CMSSW_L2, CMSSW_L1, TRIGGER_PR_TESTS
 from releases import RELEASE_BRANCH_MILESTONE, RELEASE_BRANCH_PRODUCTION, RELEASE_BRANCH_CLOSED
 from releases import RELEASE_MANAGERS
 import yaml
@@ -10,10 +10,25 @@ import yaml
 import re
 from sys import exit
 
+TRIGERING_TESTS_MSG = 'The tests are being triggered in jenkins.'
+
 # Prepare various comments regardless of whether they will be made or not.
 def format(s, **kwds):
   return s % kwds
 
+#
+# creates a properties file to trigger the test of the pull request
+#
+def create_properties_file_tests( pr_number ):
+  out_file_name = 'trigger-tests-%s.properties' % pr_number
+  if opts.dryRun:
+    print 'Not creating cleanup properties file (dry-run): %s' % out_file_name
+  else:
+    print 'Creating properties file %s' % out_file_name
+    out_file = open( out_file_name , 'w' )
+    out_file.write( '%s=%s\n' % ( 'PULL_REQUEST_LIST', pr_number ) )
+    out_file.close()
+
 # Update the milestone for a given issue.
 def updateMilestone(issue, pr):
   if issue.milestone:
@@ -111,6 +126,8 @@ if __name__ == "__main__":
   already_seen = False
   pull_request_updated = False
   comparison_done = False
+  tests_already_queued = False
+  tests_requested = False
   # A pull request is by default closed if the branch is a closed one.
   mustClose = False
   mustMerge = False
@@ -143,6 +160,9 @@ if __name__ == "__main__":
     if commenter == "cmsbuild":
       if re.match("Comparison is ready", first_line):
         comparison_done = True
+      if re.match( TRIGERING_TESTS_MSG, first_line):
+        tests_already_queued = True
+        print 'Tests already queued'
 
     # Check actions made by L1.
     # L1 signatures are only relevant for closed releases where
@@ -197,6 +217,13 @@ if __name__ == "__main__":
       elif re.match("^[-](test|tested)$", first_line):
         signatures["tests"] = "rejected"
 
+    # Check if the someone asked to trigger the tests
+    if commenter in TRIGGER_PR_TESTS:
+      if re.match("^please test$", first_line):
+        print 'Tests requested:', commenter, 'asked to test this PR'
+        tests_requested = True
+      
+
   print "The labels of the pull request should be:"
   # Labels coming from signature.
   labels = [x + "-pending" for x in signing_categories]
@@ -248,6 +275,12 @@ if __name__ == "__main__":
     releaseManagersMsg = format("%(rm)s can you please take care of it?",
                                  rm=releaseManagersList)
 
+  # trigger the tests and inform it in the thread.
+  if tests_requested and ( not tests_already_queued ):
+    create_properties_file_tests( prId )
+    if not opts.dryRun:
+      pr.create_issue_comment( TRIGERING_TESTS_MSG )
+
   # Do not complain about tests
   requiresTestMessage = "or unless it breaks tests."
   if "tests-approved" in set(labels):