Are police ever allowed to be jurors?

[darklordoftech]

?

[SteveRogers]

Sure, though they’re very unlikely to get picked in a criminal case. Typically both sides would inquire during voir dire as to whether or not the prospective juror feels their involvement with law enforcement would make them biased against the accused (and possibly also question them about whether they know any of the police officers who might be witnesses at trial). If their answers indicate they could not be impartial, the judge will strike them for cause. But if the officer says they can follow the law and remain impartial, then the defense attorney is going to have to use one of their peremptory strikes to get rid of them.

[Fuzzy Bear]

They are allowed to be jurors, but most attorneys shy away from jurors with a "Policeman's View of the World".  Then, too, an active Law Enforcement Officer often has a conflict of interest in a criminal case, where his agency may be the one that investigated the crime.  Even in a civil suit, a Law Enforcement Officer's agency may be the agency that is involved in an asset forfeiture, or may be the agency that also controls the jail the offender was confined in. 

[I spent the winter writing songs about getting better]

In theory yes, but I imagine in almost all cases in a criminal trial there would be something disqualifying them.

Although not as much of an issue in a civil trial, so I imagine it's not uncommon in those.