Taggart became known for its bizarre plots and gruesome murders (my favourite was "Nest of Vipers" in which deadly snakes were the murder weapon) but all of them had some grounding in reality. Maybe the venomous spider at the Burns Supper was a bit cheesy, but it was great fun, and Taggart was always about fun.
I remember being in Prague, watching Taggart dubbed in Polish on the hotel telly. At its best, Taggart was one of STV's finest achievements. But now? Probably best to draw a veil over it.