Interesting thread, I take it we're talking about non rated pilots flying instrument practice in VFR/VMC, if so here in the UK police world we mainly fit that description. Our practice instrument flying is mandated for one hour every 90/120 days with a safety pilot and dual controls fitted and with restricted vision. Of course it's not unknown to return to base during operational flying and couple the ILS just for the practice, but it's not logged and a good crew lookout is maintained throughout (ie no restricted vision and remaining in VMC.