 The state of California refers to individuals who practice this profession as "Valid Trauma Scene Waste Management Practitioners".Crime scene cleanup includes blood spills following an assault, homicide or suicide, tear gas residue, vandalism removal/cleanup.There are many different sub-segments, named primarily after additional collateral, contingency, or preconditions, regarding the presence of non-blood borne organics, toxic irritants (e.g., tear gas) or disease vectors.