Police are understood to be searching for chemical substances at a London property after two people were arrested under anti-terror laws. A 19-year-old man and 36-year-old woman were arrested in Streatham and Stratford.
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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.