Police are warning businesses that a series of computer thefts is occurring in western Adelaide.

There have been 12 reported thefts of computers from business premises mainly in Port Adelaide, Beverley, West Croydon and Devon Park between may 20 and May 27 this year.

Thieves appear to be targeting businesses where the front glass door is then jemmied or smashed.

The thefts are occurring between 2.00 and 5.30 in the morning and Western Adelaide Local Service Area police believe more than one group has been responsible.  

The offenders are also using stolen vehicles to transport the stolen property.  

Since October 2010, over 50 incidents have been reported to police.

The  stolen property includes 74 hard drives, 32 monitors and 10 laptops. 

Other property stolen includes a compressor, two generators and a video conferencing unit.

Police encourage business owners to implement the following security measures: 

• Install alarms
• Engrave computers and laptops with the business name or a drivers licence number,
• Lock away laptops or use security devices to secure them to desktops,
• Record serial numbers and make of computers and keep the records in a handy location,
• Close blinds/curtains, lock doors and windows,
• Report crime to police as soon as possible and report  any suspicious vehicles or people loitering in or around  premises.

Anyone with information that may assist police is asked to contact BankSA Crime Stoppers on 1800 333 000 or online at www.sa.crimestoppers.com.au.