Hexagram 30, Lí (The Clinging Fire): Line 6 (top)
离卦上九 · 离为火 · 中文版
上九：王用出征，有嘉折首，获匪其丑，无咎。
The line (Legge)
The topmost NINE, undivided, shows the king employing its subject in his punitive expeditions. Achieving admirable (merit), he breaks (only) the chiefs (of the rebels). Where his prisoners were not their associates, he does not punish. There will be no error.
Small Image commentary
'The king employs him in his punitive expeditions:' - the object is to bring the regions to a correct state.
象曰：王用出征，以正邦也。
In plain words
The king sends it out on campaign; there is praise; it takes the leaders' heads but does not seize their followers: no fault. The top line is strong and clear-sighted; campaigning for the king, it punishes only the ringleaders and spares those who were led along. The Small Image says this is to set the state right.
Applying it to your situation
If you have to deal with wrongdoing, this line suggests holding the key people to account without drawing in too many. Who truly needs to answer for this?
Position
A solid (yang) line in the top place, which is a yin (even) place, so it is not in its proper place. Its partner is line 3; both are yang, so they do not respond.
If this line moves
With this line moving alone, Lí changes into Hexagram 55 Fēng (Abundance). The Jiaoshi Yilin verse for this change (Chinese): 焦氏易林·离之丰.
The hexagram
Hexagram 30 Lí (The Clinging Fire). The Judgment: Li indicates that, (in regard to what it denotes), it will be advantageous to be firm and correct, and that thus there will be free course and success. Let (its subject) also nourish (a docility like that of) the cow, and there will be good fortune.
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English text: James Legge, The Yi King (Sacred Books of the East, vol. 16, 1882), public domain, as transcribed by the Chinese Text Project. Chinese: the received text. Offered for study and reflection, not as prediction. Plain-English readings and position notes by this site.