Albert Rosenfeld takes off his sunglasses three times while watching Deputy Brennan stumble about after hitting his head on a plank of wood.
Although several characters state that this episode takes place the day after the season one finale, Sherilyn Fenn's and (especially) Lara Flynn Boyle's hair is very noticeably longer. This is similar to the sudden hair growth displayed by both women between the show's pilot and second episode.
It is inconceivable for the log storage of the saw mill to burn down. Saw mills keep the logs wet in storage to prevent the wood becoming infested with insects.
When Agent Cooper signs for the room service the pen is closed. You can see that there is no signature on the pad.
When Norma is leaving Shelly after visiting her at the hospital a microphone is visible above the door.
In the first season, Doc Hayward reveals that the blood in the Leo's shirt is a "rare type AB-", and says that this is Jacques Renault's blood type. In the second season premiere, when Albert Rosenfield and Cooper explain Laura's murder, they say that the blood of the killer is "AB-, not of Ronnette, Leo or Jacques".