1. Instrument of Justice - Part 1

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. 30 September 1993

Taggart has a new boss and he must take orders from her even though he has doubts about the guilt of a gang member. People are later found murdered and Taggart, Jardine, Reid and McVitie must work hard and fast to catch the killer.

2. Instrument of Justice - Part 2

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. 7 October 1993

With Sean Brady still on the run, the case against John McLintock looks set to collapse. The killer strikes again, taking a third victim, relations between Taggart and his temporary boss remain somewhat strained.

3. Instrument of Justice - Part 3

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. 14 October 1993

The trial against John McLintock collapses, but his victory is short lived. The killer makes a direct threat to DCS Ellen Gordon, leaving a message inside her home. The team find a clue in a video.