Police have made a public call for witnesses to the damage, which occurred sometime between 17:00 and 19:30 on Wednesday 1 September.
A spokesman said that “Guernsey Police were dispatched to the area and found a number of buses and taxis had been targeted and sustained significant criminal damage”.
Anyone with information about what happened is asked to contact PC 62 Flatres on 222 222. Alternatively, they can call CrimeStoppers anonymously on 0800 555 111.