At least 20 reports involving fake policemen were recorded by Sharjah Police in the last six months.
Recently, fake cops have been targeting workers and threatening them of deportation if they will not follow their orders.
Fake police officers have also been involved in scamming, stealing and raping cases in Sharjah.
These fraud men in uniform also eyes illegal immigrants by extorting money in order to give them residency or legal status in the country.
Some of these men even forced women to engage into sexual acts or even prostitution.
Police say most incidents took place in industrial areas and happened late at night. Fake cops have forged identification cards to show to their target victims.
Authorities said that fake policemen could face five years imprisonment. Sharjah Police are also encouraging the public to stay on alert amid rising numbers of cases involving fake police.