There was little need for detective work during a police raid in a Perth suburb on Saturday after a dopey stoner scribbled their plans to get high on a things-to-do list.

Police searched the Coolbellup home, about 20 kilometres south-west of Perth, looking for clues about a suspected burglary.

Although they didn't say whether they found evidence to pursue during the raid they did smoke out the pothead's plans to get high.

And getting stoned wasn't the only thing on the dope's Saturday agenda.