| 17/08/16 | 08:00:06 | 17 Aug 2016 | | Final Results | RNS |
| 06/07/16 | 08:00:06 | 6 Jul 2016 | | Trading Statement | RNS |
| 02/06/16 | 08:00:09 | 2 Jun 2016 | | Holding(s) in Company | RNS |
| 24/05/16 | 13:45:29 | 24 May 2016 | | Grant of Options | RNS |
| 18/05/16 | 18:52:17 | 18 May 2016 | | Trading Update | RNS |
| 28/01/16 | 07:00:06 | 28 Jan 2016 | | Half Yearly Report | RNS |
| 30/09/15 | 14:57:23 | 30 Sept 2015 | | Exercise of Share Warrants and Total Voting Rights | RNS |
| 21/09/15 | 08:00:25 | 21 Sept 2015 | | Grant of Options | RNS |
| 18/09/15 | 08:00:04 | 18 Sept 2015 | | US$6m Contract Secured | RNS |
| 17/09/15 | 12:46:13 | 17 Sept 2015 | | Result of AGM | RNS |
| 11/08/15 | 08:00:17 | 11 Aug 2015 | | Exercise of Options and Total Voting Rights | RNS |
| 10/08/15 | 08:00:10 | 10 Aug 2015 | | Final Results | RNS |
| 27/04/15 | 16:27:48 | 27 Apr 2015 | | Exercise of Options and Total Voting Rights | RNS |
| 01/04/15 | 09:26:30 | 1 Apr 2015 | | Director Dealings | RNS |
| 26/03/15 | 07:00:41 | 26 Mar 2015 | | Holding(s) in Company | RNS |
| 20/03/15 | 16:16:18 | 20 Mar 2015 | | Holding(s) in Company | RNS |
| 20/03/15 | 07:00:09 | 20 Mar 2015 | | Exercise of Options and Director Dealing | RNS |
| 19/03/15 | 14:30:02 | 19 Mar 2015 | | Holding(s) in Company | RNS |
| 17/03/15 | 11:25:37 | 17 Mar 2015 | | Placing of 65,595,283 Existing Ordinary Shares | RNS |
| 30/01/15 | 07:00:27 | 30 Jan 2015 | | Half Yearly Report | RNS |
| 04/12/14 | 07:00:09 | 4 Dec 2014 | | Contract Win | RNS |
| 29/09/14 | 08:00:20 | 29 Sept 2014 | | Grant of Options | RNS |
| 18/09/14 | 12:57:32 | 18 Sept 2014 | | Result of AGM | RNS |
| 04/08/14 | 13:53:16 | 4 Aug 2014 | | Dividend Declaration | RNS |
| 04/08/14 | 08:00:13 | 4 Aug 2014 | | Final Results for the year ended 30 April 2014 | RNS |
| 30/01/14 | 07:00:10 | 30 Jan 2014 | | Half Yearly Report | RNS |
| 20/01/14 | 07:00:20 | 20 Jan 2014 | | Trading Update | RNS |
| 06/11/13 | 07:00:11 | 6 Nov 2013 | | Grant of Options | RNS |
| 04/11/13 | 07:00:08 | 4 Nov 2013 | | Acquisition of Gunnebo Security Installations | RNS |
| 21/10/13 | 14:41:44 | 21 Oct 2013 | | Holding(s) in Company | RNS |
| 08/10/13 | 14:23:00 | 8 Oct 2013 | | Holding(s) in Company | RNS |
| 12/09/13 | 18:05:02 | 12 Sept 2013 | | Result of AGM | RNS |
| 11/09/13 | 08:00:17 | 11 Sept 2013 | | Directorate Change | RNS |
| 19/08/13 | 16:32:42 | 19 Aug 2013 | | Director Dealings | RNS |
| 16/08/13 | 16:04:20 | 16 Aug 2013 | | Director/PDMR Shareholding | RNS |
| 02/08/13 | 08:00:14 | 2 Aug 2013 | | Dividend Declaration | RNS |
| 02/08/13 | 08:00:09 | 2 Aug 2013 | | Annual Report and Accounts/Notice of AGM | RNS |
| 30/07/13 | 08:00:30 | 30 Jul 2013 | | Preliminary Results | RNS |
| 17/07/13 | 11:20:11 | 17 Jul 2013 | | Director's Resignation | RNS |
| 06/06/13 | 08:00:06 | 6 Jun 2013 | | Trading Statement | RNS |
| 03/05/13 | 08:00:08 | 3 May 2013 | | Director Dealings | RNS |
| 24/04/13 | 08:00:15 | 24 Apr 2013 | | Director Dealing | RNS |
| 15/04/13 | 08:00:13 | 15 Apr 2013 | | Directorate Change | RNS |
| 19/03/13 | 12:23:05 | 19 Mar 2013 | | Holding(s) in Company | RNS |
| 27/02/13 | 07:00:10 | 27 Feb 2013 | | Change of Adviser | RNS |
| 15/02/13 | 16:25:13 | 15 Feb 2013 | | Holding(s) in Company | RNS |
| 12/02/13 | 10:18:46 | 12 Feb 2013 | | Change of registered office | RNS |
| 29/01/13 | 07:00:09 | 29 Jan 2013 | | Half Yearly Report | RNS |
| 15/01/13 | 07:00:05 | 15 Jan 2013 | | Additional order received for Post Office | RNS |