Yup, Behind the Bastards did an excellent two parter on forensic science in general:
https://www.iheart.com/podcast/105-behind-the-bastards-29236323/episode/part-one-the-bastards-of-forensic-170035753/ https://www.iheart.com/podcast/105-behind-the-bastards-29236323/episode/part-two-the-bastards-of-forensic-170702749/
They make a good point that real science is involved, but by the time it makes it into the police's hands it's mutated into essentially a mechanism to manufacture convictions. Grifters get hold of the science, and cops are like the perfect marks, because they're just primed for anything that will confirm their existing biases, plus they've got massive state budgets to play with, and they'll happily give the grifters legitimacy.
You can make cheese sauce with any hard cheese and sodium citrate. For the liquid you can use water, milk, beer or really any beverage you want. Obviously also chillis and hot sauce can be added at any point in the process.
You can also tune the recipe to be thicker or runnier depending on what you use it for.
This is the recipe that I use, they have a specific jalapeno one: https://www.cheeseprofessor.com/blog/sodium-citrate-cheese-sauce
The important part is the ratio of cheese:liquid:sodium citrate.