The police have warned Onam shoppers against carrying large sums of money and gold ornaments in bags when visiting crowded market places, textile and jewellery shops in the city.
They said they had recently detained an organised group of migrant women who specialised in lifting bags and purses of women by deliberately creating a hustle and bustle in crowded shops.
The police suspect that more such groups were operating in the city.
The police have deployed plainclothesmen and women in Fort area to detect chain snatchers, pickpockets and anti-social elements.
The police have installed digital cameras with night vision capability in main festival venues and commercial areas. Consumption of alcohol in public places, including inside vehicles, and in premises which do not have permit to serve liquor, would not be allowed. Law enforcers would also clamp down on drunken revelry in public places.
To prevent burglaries during the festival season, the police have requested resident association office-bearers to submit the list of unoccupied houses in their localities. They will conduct joint patrolling with local people in residential areas.
As many as 2,000 policemen will be deployed for law and order and traffic duties in the city during the Onam week celebrations which commence on Saturday.
Vehicle parking will not be allowed on the Mascot Hotel-Museum-Vellayambalam-Kowdiar stretch till the festivities are over.
Vigil at festival venues
The police will use video surveillance, plainclothesmen and anti-sabotage squads to cover festival venues, chiefly Kanakakkunnu Palace, Putharikandam Maidan, Poojappura, VJT Hall, Senate Hall, Shanghumugham and the Veli tourist village.
Curbs on loud noise
Sound measuring devices would be used to ensure that loudspeakers are not operated above the permissible decibel level. Violators would be fined and their equipment seized.
The police would launch an intensive drive against drunk driving from Saturday. Traffic enforcers would use alcohol breath analysers and speed-reading radars to prosecute errant drivers.
The police are also planning preventive arrest of known offenders.