Lucifer, Stay. Good Devil. - S1-E2
Revealing mistake: When Jimmy grabs the cell's door, in the shot that happens before he starts banging his head on it, the supposedly secure door gives way effortlessly, showing big gaps. (00:42:30)
Favorite Son - S1-E6
Revealing mistake: When Lucifer is going through the forensics bag next to the dead body at the start, the body of the victim can be seen breathing. (00:07:30)
Favorite Son - S1-E6
Revealing mistake: When Lucifer takes off in Chloe's car during the stakeout, tyre marks are visible in the gravel from previous takes. (00:32:10)
Revealing mistake: When Lucifer convinces Ricky not to jump off the building, it is blatantly obvious that the two actors are on a green screen and not an actual rooftop. The green glow around their heads is visible. (00:13:10)
St. Lucifer - S1-E11
Revealing mistake: When Chloe is getting dressed at the start of the episode, she is wearing a flesh colored bra underneath the bed covers that she has wrapped around her when she mentions her ex dumping her by text.
Answer: Yes and no. After the body dies, it loses about 1.5°C per hour until it reaches ambient temperature (i.e. the temperature where the body is found). But there are factors affecting the rate of loss, and one has to assume a starting temperature of 98.6°F. In this case, after factoring in the time from when the police were called to when the body temperature was checked, it would have been determined some time had passed, just not a lot, before Beth saw Moira standing over Megan. Really, what they were saying is Moira's story is believable: that she found her sister dead and picked up the hammer right as the garage door opened.
Bishop73