Patrol route setting apparatus, patrol route setting method, and non-transitory storage medium

A patrol route setting apparatus includes a cell divider, a probability distribution setter, a random number generator, a destination setter, a route setter, and a probability distribution updating unit. The cell divider divides map information into cells. The probability distribution setter sets, for each cell, a probability distribution of a presence probability of a capturing target in the cell. The destination setter that sets, as a destination, any, of the cells, that has a greatest first value, of the presence probability, corresponding to a random number generated by the random number generator, on the basis of the probability distributions. The probability distribution updating unit updates, on the basis of presence information of the capturing target acquired by an information acquiring unit, the probability distributions of the presence probability of the capturing target, when the movable body travels along the traveling route to the destination set by the route setter.