IdQs are not training courses but accreditation by examination of existing identification skills. The best training you can do is to practise.
In order to maintain a separation between training and assessment we do not run regular training courses leading directly to the Identification Qualification. However, there are a number of institutions in the UK offering a variety of courses in identification of plant and animals species.
The following list can be used for guidance but it does not necessarily represent a recommendation. Look in your local telephone directories or yellow pages to find natural history, ecology or wildlife centres near you that may run courses on identification.