ALTHOUGH THE POLICE HAVE A MILITARY STRUCTURE FRAUGHT WITH RULES, IT IS ACCEPTED PRACTICE TO IGNORE SUCH RULES IN THE NAME OF COMMON SENSE. HOWEVER, POLICE MUST OFTEN EXPLAIN THEIR BEHAVIOR TO SUPERIORS. TO FIND OUT HOW POLICE OPERATE, URBAN PATROLMEN AND THEIR SUPERVISORS WERE OBSERVED OVER A PERIOD OF TIME. A FOOT PATROLMAN IS OBLIGED TO REACH A CERTAIN POINT AT A SPECIFIED TIME; SUPERVISORS CHECK PATROLMEN AT EACH POINT. HOWEVER, PATROLMEN CONSIDER OTHER ACTIVITY, SUCH AS ANSWERING SERVICE CALLS, INVESTIGATING SUSPICIOUS PERSONS, OR EVEN OCCASIONALLY LOAFING, AS MORE IMPORTANT THAN REACHING ALL POINTS ON TIME. THEY BELIEVE THAT POLICEMEN STRICTLY ADHERING TO OR ENFORCING FIXED POINTS ARE NAIVE ABOUT POLICE WORK. ALTHOUGH SOME FAILURE TO REACH POINTS IS EXPECTED BY SUPERVISORS, CONSTABLES STILL HAVE TO ACCOUNT FOR THEIR TARDINESS. HOWEVER, PATROLMEN ARE TRUSTED BY THEIR SUPERVISORS IF THEY HAVE ADHERED TO THE POLICE MANDATE AND SOUND PLAUSIBLE, OR IF THEIR ACCOUNT IS DIFFICULT TO VERIFY. THUS, POLICE GET THEIR JOB DONE NOT BY STRICTLY KEEPING THE RULES BUT BY BREAKING THEM IN AN ACCEPTABLE MANNER. (PAP)