The scene
Model Park · Viewing pointAn exhibition boat disappears from the storeroom between 10:00 and 10:06. Three staff members were out of observation.
They were seen at their stations at both the start and the end: the culprit had to return.
What we know for certain
One person walked to the storeroom, took the boat and returned. The times are exact minimums, including while carrying it. There are no shortcuts, vehicles or accomplices. The boat was still there at 10:00. Opening the door and picking it up takes no additional time in this model.
The three accounts
Olga Vidal
Pond station«I did not leave my area to enter the storeroom.»
Pau Riera
Hedge station«I was looking after admissions during the interval.»
Rita Mora
Bridge station«My route looks short on the map.»
Examine the evidence
0 of 5 openedOpening these five clues does not cost points.
01The available window
All three were at their stations at 10:00 and at 10:06. The boat was removed between those observations.
02The pond route
Olga needs at least four minutes to walk from her station to the storeroom and four to return.
03The hedge route
Pau can arrive in two minutes and return in another two along a path open throughout the interval.
04Rita's checkpoint
Rita takes one minute per journey to the storeroom, but she must pass a checkpoint that adds a compulsory three minutes in each direction.
05The complete routes
The recorded times cover the entire journey. Rita's checkpoint applies on both the outward and return journeys and cannot be avoided.