Armed police guard the entrance to Lizvale Farm,Navestock near Romford, as they continue to search for Francis O'Donoghue.
Scene of crime officers in white suits are working insidethe gates as police investigate the shooting of two men yesterday.
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Rahman was ejected from his powerful job in April by an Election Commissioner after being accused of corrupt and illegal practices.
The service was due to start in September but there is no agreement on pay and conditions such as how many night shifts staff will work.
Would you know what to do if you needed help? Here's the official advice from the Foreign Office.