Secrecy of the Investigation - Seasons
Season 1
2000
•
16 episodes
Season 2
2003
•
12 episodes
Season 3
2004
•
12 episodes
Season 4
2005
•
12 episodes
Season 5
2006
•
12 episodes
Season 6
2006
•
12 episodes
Season 7
2008
•
12 episodes
Season 8
2009
•
12 episodes
Season 9
2011
•
24 episodes
Season 10
2011
•
24 episodes
Season 11
2012
•
12 episodes
Season 12
2013
•
12 episodes
Season 13
2013
•
20 episodes
Season 14
2014
•
16 episodes
Season 15
2015
•
16 episodes
Season 16
2016
•
20 episodes
Season 17
2017
•
24 episodes
Season 18
2018
•
24 episodes
Season 19
2019
•
24 episodes
Season 20
2020
•
24 episodes
Season 21
2021
•
24 episodes
Season 22
2022
•
18 episodes
Season 23
2023
•
16 episodes
Season 24
2024
•
16 episodes
Season 25
2025
•
16 episodes