It will ensure businesses do not get excessive bills for fake expenses such as lunch time beers and strip clubs that undoubtedly get charged to people.
I find it bizarre that the huge amount of publicity given to MPs making false expenses never got extended to the Big 4 audit firms who audit government bodies and bill them their expenses. These firms are given a similar responsibility and take advantage of this position when billing for expensive meals, alcohol and even strip clubs.
I can almost guarantee that in their expense bills there will be amounts that should not be claimed that are ultimately being paid by the tax payer. Similarly for none government businesses it is time that they were prevented from passing on fake expenses and costs that should not be incurred by the business.
Its time these firms had their expenses fully reviewed by an independent body whenever they bill them on to businesses to ensure that they do not take advantage of their position.