Nicosia and Famagusta district police conducted a large scale operation on Friday night, aiming at dealing with unlicensed security companies and self-employed security guards, according to the police report.
Police officers raided 34 establishments in both districts and arrested four people who were working as security guards without proper licences.
Police also raided a beach party to look for drugs but found nothing, according to the report.
Meanwhile, in a separate operation, Nicosia and Limassol police raided three establishments in an attempt to deal with illegal gambling.
In a betting store in Nicosia police confiscated 17 computers that were modified to work as slot machines while 25 computers were confiscated following the raid in two other betting stores in Limassol.