Through a descriptive quantitative research design this study determined, described and assessed the challenges of police investigators in Zambales PPO as represented by six (6) police stations with the highest number in terms of population namely: Subic, San Narciso, Cabangan, Botolan. Iba and Candelaria; to come up with an action intervention plan. From the total strength of 85 police investigators in Zambales PPO, Region 3, six municipalities were chosen as locale of the study which was represented by 49 respondents will compromised the sample size for this study. Based from the findings of this study which revealed that investigators face challenges in exploring alternative avenues or acquiring additional sources to gather information when the available data us insufficient to advance the investigation. Investigators encounter difficulties in piercing together the chronological order of events associated with the incident, evaluating their data, and substantiating the inadequacy of information. Insufficient tangible resources pose a challenge in effectively processing and handling evidence during investigation. Based on the frequent transfers of personnel leading to discontinuity in prosecution and it has an impact on the efficiency of the justice system as to its ability to deliver timely justice. Certain training programs could be enhanced, and occasionally, they may benefit from better alignment with the specific needs on conducting investigations.