Surely the conduct of examinations is the responsibility of the university or at least the faculty? Why does a lecturer need to be involved in enforcement?

I was involved in conducting examinations in schools (Year 3 to Year12) and universities for many years. Examination rules were usually set by the state Board of Studies or the university, but the rules I worked under can be summarised as:
- scientific calculators are permitted, but candidates must demonstarte to the invigilators that memeories are emptied (usually by just switching the calculator off, or by removing the battery)
- no dictionaries of any sort
- mobile phones switched off
- no PDAs or other networked devices.

Of course there were exceptions specified for particular exams, schools etc but in general they had to be simple and easy to understand given that the invigilators were usually retired school teachers and academics not always from the same subject area.

Calculators were permitted (actually they were mandatory) but the type was specified.

Not always. Many characters in Arabic are modified by the characters before and after them in cursive script and this is usually beyond most fonts.

Or at least in the state of New South Wales, where the Foundation Style is the script that has been taught in schools for at least 15 years.

http://www.boardofstudies.nsw.edu.au/parents/k6writing.html

Foundation script was introduced to ensure that students produced a readable handwritten script and in the expectation that most future "writing" would be done at a keyboard. (Although I have spoken to Board of Studies people who deprecate keyboard skills, saying that we have to anticipate true speech recognition in a few years time).

Type I As/NZS rules by sheer weight of numbers.

Australia, New Zealand, Papua New Guinea, Fiji, various Pacific island nations, widely used in Argentina and Uruguay and, oh yes, China ( or at least large parts of it.