strength of each parties claim is analysed - in a case where one party is doubtful of his claim then a chazakah may not decide the case. Section Three The third section builds on the previous section. The focal passage here is Niddah 2b - this discusses a case in which we were certain about the status of an object (in that passage a ritual bath) on day one and again on day seven but we are unsure about the time in between (days 2-6). The question is whether the certainty on day one is of primary importance in deciding the status of the next few days (Chazakah D' Me'ikara) or the certainty of day seven is more important (Chazaka D' Hashta). Heller points out (based on various Talmudic passages) that if the object is likely to change (in his example a girl who is likely to mature) then the Chazakah D'Hashta takes precedence. Section Four Section Four discusses the principle (Bava Batra 23b) that in case of a conflict between the principle that we follow the majority (Rov) and the presumption that if an object is found near a certain place we can assume the object originated in that place (Karov) the law of Rov has decisive power. It further discusses the power of Rov in regards to monetary cases and the power of Rov to take an object away from its present possessor. Section Five Section Five involves a disagreement among the Rishonim. This refers to case wherein a person or object is under the influence of a specific type of spiritual impurity or halachic prohibition. The subject then becomes involved with something that leaves it under a doubt of a different type of prohibition or impurity and then becomes cleared of the original impurity. The question is whether the Chazakah of the first impurity holds good to decide his status in reference to the second impurity. Section Six This section compares the power of a single witness (that is believed for prohibitions and to require an oath) and the power of Chazakah. The status of two sets of witnesses contradicting each other is also discussed. Section Seven Section Seven discusses the Halachic concept that an ordinarily unfit witness (e.g. a child) is believed if in the middle of an ordinary conversation he mentions something in passing. The belief of certain people who state that they recognize a