Two cars were set alight outside a Springvale home on May 3.
The cars, which were extensively damaged, were at an Amiel Street address when they were set on fire about 10.15pm.
The person suspected of lighting the fires was seen running north along Amiel Street towards Springvale Heights Primary School.
Anyone with information about the incident can call Senior Detective Elise Douglas on 9767 7444.
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