The investigation was conducted: Season 7 - 35 Episode s
7x189 - Episode 189
January 29, 2012
7x190 - Episode 190
February 5, 2012
7x191 - Episode 191
February 11, 2012
7x192 - Episode 192
February 18, 2012
7x193 - Episode 193
February 25, 2012
7x194 - Episode 194
March 17, 2012
7x195 - Episode 195
March 24, 2012
7x196 - Episode 196
March 31, 2012
7x197 - Episode 197
April 7, 2012
7x198 - Episode 198
April 21, 2012
7x199 - Episode 199
April 22, 2012
7x200 - Episode 200
May 13, 2012
7x201 - Episode 201
May 19, 2012
7x202 - Episode 202
May 26, 2012
7x203 - Episode 203
June 2, 2012
7x204 - Episode 204
June 10, 2012
7x205 - Episode 205
June 16, 2012
7x206 - Episode 206
June 23, 2012
7x207 - Episode 207
June 30, 2012
7x208 - Episode 208
September 1, 2012
7x209 - Episode 209
September 8, 2012
7x210 - Episode 210
September 15, 2012
7x211 - Episode 211
September 22, 2012
7x212 - Episode 212
September 29, 2012
7x213 - Episode 213
October 6, 2012
7x214 - Episode 214
October 13, 2012
7x215 - Episode 215
October 20, 2012
7x216 - Episode 216
October 27, 2012
7x217 - Episode 217
November 10, 2012
7x218 - Episode 218
November 17, 2012
7x219 - Episode 219
November 24, 2012
7x220 - Episode 220
December 1, 2012
7x221 - Episode 221
December 8, 2012
7x222 - Episode 222
December 15, 2012
7x223 - Episode 223
December 22, 2012
The investigation was conducted: All seasons
S0: Specials
1 Episode
S1: Season 1
32 Episode s
S2: Season 2
36 Episode s
S3: Season 3
36 Episode s
S4: Season 4
29 Episode s
S5: Season 5
32 Episode s
S6: Season 6
31 Episode s
S7: Season 7
35 Episode s
S8: Season 8
34 Episode s
S9: Season 9
33 Episode s
S10: Season 10
35 Episode s
S11: Season 11
35 Episode s
S12: Season 12
35 Episode s
S13: Season 13
36 Episode s
S14: Season 14
36 Episode s
S15: Season 15
36 Episode s
S16: Season 16
36 Episode s
S17: Season 17
36 Episode s
S18: Season 18
37 Episode s
S19: Season 19
35 Episode s