Former cop here. The article states "You cannot lie to the police". This is, generally, incorrect. Some jurisdictions may have some specific law, but other than certain exceptions, lying has no general consequence. If it did, there would be a lot more charges against pretty much everyone who has been arrested. In my experience, people will lie about stuff that's not even relevant, or helpful to them. Exceptions inclu…
IANAL but my understanding was that lying to the police opens you up to obstruction of justice charges -- or perjury. For instance, I learned from law professor James Duane's video that Martha Stewart would have completely avoided prison time if she had not lied to investigators. https://www.youtube.com/watch?v=d-7o9xYp7eE&feature=emb_titl...
As a cop, if you get caught lying, i.e. intentionally false testimony in court, your career is effectively over. Any defense attorney can bring that one time you got caught lying up in court, discounting your entire testimony on every case forever, making you useless. No matter how bad you screw up as a cop, the number 1 rule is don't lie about it in court.
*Maybe not in some jurisdictions? But realistically yeah, always