Claims drafted overseas and filed in Australia are often accepted by the Australian Patent Office without being adapted to local laws. In particular, claims that have been examined and accepted by European or US Patent Offices are often forwarded to Australian patent attorneys for submission as is, or with perhaps with only minor modifications. This is especially the case with modified examination, where an Australian patent may be granted on the basis of a patent granted in the United States, a European convention country, Canada or New Zealand, provided it uses exactly the same wording as the granted patent. This can lead to problems during litigation.