When Cho is shooting the bottles of Merlot there are six bottles remaining after the other man shoots one. When Cho takes his turn he is shown to have hit the rest of them without missing a shot, however he is shown only shooting 5 bottles.
When Lisbon asks for the memory card from the DSLR camera, a SD card is shown, whereas most higher end DSLR cameras used Compact Flash cards in that era, with only the lower priced (sub $1000) cameras used SD cards. It is also unlikely that pictures from a DSLR would display on a lower end point and shoot camera, especially if they were not from the same manufacturer, or they were photos of a different format.
the camera that Lisbon uses in the pawn shop to look at the memory card, if it is working on that camera I think a compact Nikon, doesn't have a touchscreen, so you won't be able to swipe through te pictures.
After shooting the win bottles, Cho's fingers go through the motions of decocking the gun, but the hammer remains in the cocked position. He handed a loaded and cocked weapon to a bystander, something a trained officer would not do.
The CBI is supposed to be patrolling a downtown protest march, but Jane says he saw a suspicious man near 56th & J Streets, which is well away from the Downtown Sacramento area.
The saying on the poster Tibbs has in his lair is a common paraphrase derived from the John Stuart Mill quote "Bad men need nothing more to compass their ends than that good men should stand by and do nothing" and the related but less similar "When bad men combine, the good must associate, else they will fall, one by one, an unpitied sacrifice in a contemptible struggle" by Edmund Burke, but Jane attributes it as a Burke quote, a common error that his encyclopedic knowledge would never permit.