ISIS [Daesh] has issued a chilling guide which advises would-be militants to avoid detection by Western security agencies by shaving their beards and encrypting their phones.
The manual, translated into English, is named 'Safety and security guidelines for Lone Wolf Mujahideen and small cells' and features mocked-up images of buildings in New York on fire.
It advises on the best way to blend in with a local population and says the lone wolf should 'not look like a Muslim' - but should instead shave their beards, wear Western clothes and avoid attending mosque too much.
It says: 'Always look like any random tourist or normal traveller. Make the colours go with each other.
'Wearing a red or yellow shirt with black pants will get you noticed as someone who is not used to this kind of clothing.
'Also, no need to put on new clothes, as that can be suspicious. Some brothers like to buy entirely new clothes, from top to bottom including shoes, but that will get too much attention.'
The 64-page booklet also issues guidelines on how to 'surprise the enemy' by evading security agencies and even provides a list of encryption software which can be used to disguise the content of emails and mobile phone calls.
Bizarrely, the pamphlet even instructs would-be jihadis on the best kind of 'perfume' to wear: 'If you want to use perfume during your travel, don't use the oily, non-alcoholic perfume that Muslims use.
'Use generic alcoholic perfume as everyone does, and if you are a man, use perfume for men.'
The 64-page guide was first published by al-Qaeda but has been updated by ISIS extremists to include advice on how would-be attackers can avoid being detected.
The 12-chapter manual is also reveals how to go online without being detected and how to tell if a spy is trying to infiltrate a small cell.
It is not the first time an ISIS guide has emerged.
In June it was revealed how manuals outlining how to make bombs and use firearms effectively were being circulated by British extremists online.
The interactive guides, which also encouraged lone wolf attacks, were compiled by a militant from England who claims to have links to ISIS.
They included step-by-step instructions on how to make car bombs 'Iraqi style' and a piece on staying anonymous while using a smartphone.
One, titled the Book of Terror, contains a video of the murder of Fusilier Lee Rigby, who was killed while off-duty near the Royal Artillery Barracks in Woolwich in 2013.
It also features a clip of the 7/7 London attacks, which left 52 dead and more than 700 people injured.
In December, senior police figures warned Britain must be braced for lone-wolf atrocities.
Lord Blair, who led Scotland Yard during the July 2005 London bombings, said police face a 'difficult situation' amid a growing threat.
By Keiligh Baker
© Associated Newspapers Ltd.