Some of these exams contain errors that were corrected orally when the exams were administered.
In general, I do not encourage students to spend much time studying my old exams. I think most students will benefit more from re-reading required course material or studying other sources.
These old exams are not a reliable indication of the type or scope of exam questions because the course coverage changes, the law changes, and my testing methods change. The model answers are not always accurate because the law changes or they may be wrong. I do not reuse old exam questions (unless they have been discussed in class).