NCIS: GIBBS' RULES — THE COMPLETE LIST! — Rule #1: Never let suspects stay together. (Franks) 1x01 'Yankee White' — Rule #1: Never screw over your partner. 4x14 'Blowback' — Rule #2: Always wear gloves at a crime scene. (Franks) 1x01 'Yankee White' — Rule #3: Don't believe what you're told. Double check. (Franks) 1x01 'Yankee White' — Rule #3: Never be unreachable. 3x13 'Deception' — Rule #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' — Rule #5: You don't waste good. (…You're Good!) (Gibbs said to DiNozzo) 8x22 'Baltimore' — Rule #6: Never apologize — Its a sign of weakness. — Rule #7: Always be specific when you lie. 1x23 'Reveille' — Rule #8: Never take anything for granted. 3x10 'Probie' — Rule #9: Never go anywhere without a knife. 1x13 'One Shot, One Kill' & 1x20 'Missing' — Rule #10: Never get personally involved on a case. (Said by Tony, agreed on by Gibbs) 7x21 'Obsession' — Rule #11: When the job is done, walk away. 6x24 'Semper Fidelis' — Rule #12: Never date a coworker. 1x15 'Enigma' — Rule #13: Never, ever involve a lawyer. 6x07 'Collateral Damage' & 7x24 'Rule Fifty-One' — Rule #15: Always work as a team. 5x05 'Leap of Faith' — Rule #16: If someone thinks they have the upper-hand …break it! (DiNozzo) 8x24 'Pyramid' — Rule #18: It's better to seek forgiveness than ask permission. 3x04 'Silver War' — Rule #22: Never, ever bother Gibbs in interrogation. 4x10 'Smoked' — Rule #23: Never mess with a Marine's coffee if you want to live. 2x09 'Forced Entry' — Rule #27: Two ways to follow: — First way they never notice you, — second way they only notice you. 7x15 'Jack Knife' & 7x24 'Rule Fifty-One' — Rule #35: Always watch the watchers. 8x22 'Baltimore' — Rule #38: Your case, your lead. 6x16 'Bounce' — Rule #39: There is no such thing as coincidence. 7x21 'Obsession' 7x24 'Rule Fifty-One' (Mentioned by Abby) — Rule #40: If it seems someone is out to get you, they are. (Said by Abby, agreed on by Gibbs) 7x22 'Borderland' & 7x24 'Rule Fifty-One' — Rule #44: First things first. Hide the women and children. 7x23 'Patriot Down' — Rule #45: Clean up your own mess. (Gibbs Said, "Left a mess I've got to clean up." — Rule #51: Sometimes — You're Wrong! 7x24 'Rule Fifty-One'