1. chase, pursuit, tracking, stalking

transitive verb noun or participle which takes the aux. verb suru nouns which may take the genitive case particle 'no' noun (common) (futsuumeishi)

2. following up, tracing

noun or participle which takes the aux. verb suru transitive verb noun (common) (futsuumeishi) nouns which may take the genitive case particle 'no'