LONDON (Dow Jones)--Security systems firm Newmark Security PLC (NWT.LN) Monday posted a 23% rise in fiscal 2010 pretax profit, but said it expects lower revenue on year in the first half of this year due to orders being postponed before the U.K. general election and the emergency budget. Newmark said trading in the first few months of fiscal 2011 has been varied, but it expects revenue to be up in the second half. For the year ended April 30, Newmark posted pretax profit of GBP1.6 million, compared with GBP1.3 million a year earlier. Revenue rose to GBP13.8 million from GBP13 million, on an 18% increase from its asset protection division. Newmark proposed a dividend of 0.0275 pence a share, up from 0.025 pence last year. -By Rachael Gormley, Dow Jones Newswires; 44-20-7842-9308; rachael.gormley@dowjones.com (END) Dow Jones Newswires July 26, 2010 02:23 ET (06:23 GMT)