Nine vehicles have been broken into in 24 hours prompting police to up their patrols of the area.
Thieves struck overnight last Thursday and Friday to get at tools stored in the vans and cars parked in the Brackley area.
A police spokesman said: “This type of incident happens very quickly and does not give us much opportunity for investigation as usually there are no witnesses and little forensic evidence.”
Drivers have been warned to remove all items of value from their cars and vans, including tools, sat navs, handbags, CDs and mobile phones.
The spokesman continued: “Our message is clear: Do not leave valuables in your vehicle, ensure it is locked, and if it has an alarm, use it. Similarly, if you have a garage, please use it.
“Whenever you park your car, whether it is in a public street or on your driveway, it is always worth taking a few seconds to remove items that are on show.”
They added if removing sat navs from windows care should be taken to also remove the marks these devices leave behind as they could be an indicator to police that valuables are stored inside.
Sgt Micki Simons confirmed two arrests had been made on Saturday night and police were looking at the possibility of linking these with the offences.
She added: “They had in their possession a number of items that may be used to steal. As such they were arrested on suspicion of going equipped to steal. We also seized their van.”
Police advise motorists to get into the habit of parking cars in garages if they are available and using simple security measures like steering wheel locks and alarm systems. If parking in a public place, the advice is to leave your vehicle in a busy spot which is secure.
Police have appealed for people to be on the look-out for anyone acting suspiciously and to call police with their concerns.
They would like to hear from anyone who may have been offered tools for sale, particularly in the Brackley area.
Witnesses or anyone with information is asked to contact police on 101 or Crimestoppers anonymously on 0800 555 111.