Gibbs Rules

1. Never let suspects stay together. (1x1 Yankee White)
   Never screw over your partner. (4x14 Blowback)
2. Always wear gloves at a crime scene. (1x1 Yankee White)
3. Don't believe what you're told. Double check. (1x1 Yankee White)
   Never be unreachable. (3x13 Deception)
4. The best way to keep a secret? Keep it to yourself. Second best? Tell one other person - if you must. There is no third best. (4x11 Blowback)
5. You don't waste good (8x22 Baltimore)
6. Never apologize — Its a sign of weakness. (Finally giving a number in 7x12 Flesh & Blood)
7. Always be specific when you lie. (1x23 Reveille)
8. Never take anything for granted. (3x10 Probie)
9. Never go anywhere without a knife. (1x13 One Shot, One Kill)
10. Never get personally involved on a case. (7x21 Obsession)
11. When the job is done, walk away. (6x24 Semper Fidelis)
12. Never date a coworker. (1.15 Enigma)
13. Never, ever involve a lawyer. (6x7 Collateral Damage)
14. Bend the line, don't break it (11x4 Anonymous Was A Woman)
15. Always work as a team. (5x05 Leap of Faith)
16. If someone thinks they have the upper hand, break it (8x24 Pyramid)
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18. It's better to seek forgiveness than ask permission. (3x4 Silver War)

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20. Always look under. (12x17 The Artful Dodger)
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22. Never, ever bother Gibbs in interrogation. (4x10 Smoked)
23. Never mess with a Marine's coffee if you want to live. (2x9 Forced Entry)
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27. Two ways to follow: — First way they never notice you, — second way they only notice you. (7x15 Jack Knife)
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35. Always watch the watchers (8x22 Baltimore)
36. If it feels like you're being played, you probably are. (9x1 The Nature of the Beast)
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38. Your case, your lead. (6x16 Bounce)
39. There is no such thing as coincidence. (7x21 Obsession)
40. If it seems someone is out to get you, they are. (7x22 Borderland)
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42. Don't ever accept an apology from someone who just sucker punched you. (9x16 Psych Out)
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44. First things first. Hide the women and children. (7x23 Patriot Down)
45. Clean up the mess that you make. (7x24 Rule Fifty-One)
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51. Sometimes — You're Wrong! (7x24 Rule Fifty-One)
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69. Never trust a woman who doesn't trust her man. (9x7 Devil's Triangle)