Am a big fan of murder/mystery/detective shows and dramas, and jump at the opportunity when a new one comes along, re-watching classics is also a joy. Prime-'Taggart' (the Taggart-era and the first half of the Jardine-era). Although remaining watchable and there were good episodes, the show didn't feel the same in the period where Burke was in charge, particularly when the episode lengths became shorter (too short).
"Bad Blood" is one of the good episodes. Actually think generally that it is very good and the best 'Taggart' episode since "Death Trap", was mixed on the first five Burke episodes while finding the previous two episodes improvement. While it is not one of the best 'Taggart' episodes, there is plenty of intrigue and plenty to keep one guessing. The improvements seen in the previous two episodes still remain in "Bad Blood".
Did think that the truth about Fairchild was too obvious too early, or at least the sentiment that she wasn't who she seemed. Felt that it was the case as early as the second murder and was convinced of it when there was concern over her reaction to it, then there is everything with the report where it could only have been her.
While it wasn't as obvious, though it also was not a surprise in both the who and why, the ending did feel rushed and underdeveloped.
On the other hand, the production values have the necessary grit and moodiness and Glasgow is like its own character. The moodiness is present in the music and the main theme as always is unforgettable. The improved and increased chemistry and teamwork within the team is here too and am continuing to have less of a problem with Burke, who now gels better and is less of a bully.
Regarding the script, that's intriguing and there's more bite and dryness that were missing when the Burke-period first began. The twists and turns did surprise on the whole without being too many, original the story may not be but it didn't feel too tired. The acting is good.
Concluding, very good. 8/10