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