The stark news comes after it was revealed a 'large selection' of uniform clothing was stolen from a film production firm in the Falkirk area.
Police in Forth Valley are now appealing for witnesses following the break-in and theft in Slamannan.
The incident happened sometime between 11pm on Saturday, August 31 and midday on Sunday, September 1 at a set and prop company based in Lochside Road, Limerigg.
The culprits forced their way into a storage unit and seized the equipment stored there. It is understood the incident happened at Skyemore RVs.
The items taken include stab vests, police t-shirts, police trousers, police fleeces, police hats, imitation batons, handcuffs and Pava spray containers.
Many of these garments are embroidered with 'Police'. In addition, tools and vehicle diagnostic equipment was also stolen.
Detective Chief Inspector Colin Campbell said: "At present we do not have a value for the stolen goods. However, our concern is that the suspects may look to use these to imitate Police Officers, as the props look very realistic.
"If you have any doubt about the authenticity of someone claiming to be an officer, ask to see identification and if they cannot provide it, then report them via 101.
"As part of this inquiry we would urge anyone who saw any suspicious activity around Lochside Road over the weekend, or who can help us identify the culprits, to contact police immediately.
"Similarly, if anyone has information as to the whereabouts of the stolen props and clothing, please also get in touch."
Those with information can contact Forth Valley CID via 101 and quote incident 2094 of the 1st September. Alternatively, an anonymous report can be made to the charity Crimestoppers on 0800 555 111.